10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, DC 20549

_____________________________________________________________________________________

FORM 10-Q

_____________________________________________________________________________________

(Mark one)

þ	QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the quarterly period ended September 30, 2013.
OR
¨	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
	For the transition period from                    to                     .

Commission file number 001-32147

______________________________________________________________________________________

GREENHILL & CO., INC.

(Exact Name of Registrant as Specified in its Charter)

______________________________________________________________________________________

Delaware	51-0500737
(State or Other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
300 Park Avenue New York, New York	10022 (ZIP Code)
(Address of Principal Executive Offices)

Registrant's telephone number, including area code: (212) 389-1500

______________________________________________________________________________________

Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.    Yes  þ    No  ¨

Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).    Yes  þ    No  ¨

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer or a smaller reporting company. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer þ	Accelerated filer ¨	Non-accelerated filer ¨	Smaller reporting company ¨
		(Do not check if a smaller reporting company)

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨   No   þ

As of October 30, 2013, there were 27,767,702 shares of the registrant's common stock outstanding.

TABLE OF CONTENTS

		Page
PART I.	Financial Information
1.	Financial Statements	4
	Condensed Consolidated Statements of Financial Condition as of September 30, 2013 (unaudited) and December 31, 2012	4
	Condensed Consolidated Statements of Income for the three and nine months ended September 30, 2013 and 2012 (unaudited)	5
	Condensed Consolidated Statements of Comprehensive Income for the three and nine months ended September 30, 2013 and 2012 (unaudited)	6
	Condensed Consolidated Statements of Changes in Equity for the nine months ended September 30, 2013 (unaudited) and the year ended December 31, 2012	7
	Condensed Consolidated Statements of Cash Flows for the nine months ended September 30, 2013 and 2012 (unaudited)	8
	Notes to Condensed Consolidated Financial Statements (unaudited)	9
2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	19
3.	Quantitative and Qualitative Disclosures About Market Risk	32
4.	Controls and Procedures	32
PART II.	Other Information
1.	Legal Proceedings	32
1A.	Risk Factors	32
2.	Unregistered Sales of Equity Securities and Use of Proceeds	32
3.	Defaults Upon Senior Securities	33
4.	Mine Safety Disclosures	33
5.	Other Information	33
6.	Exhibits	E-1
Signatures		II-1
Exhibits

2

AVAILABLE INFORMATION

Greenhill & Co., Inc. files current, annual and quarterly reports, proxy statements and other information required by the Securities Exchange Act of 1934, as amended (the “Exchange Act”), with the United States Securities and Exchange Commission (the “SEC”). You may read and copy any document the company files at the SEC's public reference room located at 100 F Street, N.E., Washington, D.C. 20549, U.S.A. Please call the SEC at 1-800-SEC-0330 for further information on the public reference room. The company's SEC filings are also available to the public from the SEC's internet site at http://www.sec.gov. Copies of these reports, proxy statements and other information can also be inspected at the offices of the New York Stock Exchange, Inc., 20 Broad Street, New York, New York 10005, U.S.A.

Our public internet site is http://www.greenhill.com. We make available free of charge through our internet site, via a link to the SEC's internet site at http://www.sec.gov, our annual reports on Form 10-K, quarterly reports on Form 10-Q, current reports on Form 8-K, proxy statements and Forms 3, 4 and 5 filed on behalf of directors and executive officers and any amendments to those reports filed or furnished pursuant to the Exchange Act as soon as reasonably practicable after we electronically file such material with, or furnish it to, the SEC. Also posted on our website in the “Corporate Governance” section, and available in print upon request of any stockholder to our Investor Relations Department, are charters for our Audit Committee, Compensation Committee and Nominating & Corporate Governance Committee, our Corporate Governance Guidelines, Related Party Transaction Policy and Code of Business Conduct & Ethics governing our directors, officers and employees. You may need to have Adobe Acrobat Reader software installed on your computer to view these documents, which are in PDF format.

3

Part I. Financial Information

Item 1. Financial Statements

Greenhill & Co., Inc. and Subsidiaries

Condensed Consolidated Statements of Financial Condition

(in thousands except share and per share data)

	As of
	September 30,			December 31,
	2013			2012
	(unaudited)
Assets
Cash and cash equivalents ($5.2 million and $7.1 million restricted from use at September 30, 2013 and December 31, 2012, respectively)	$	30,344		$	50,324
Advisory fees receivable, net of allowance for doubtful accounts of $0.0 million at September 30, 2013 and December 31, 2012	64,645			54,444
Other receivables	4,341			1,554
Property and equipment, net of accumulated depreciation of $56.2 million and $54.8 million at September 30, 2013 and December 31, 2012, respectively	11,893			14,404
Other investments	11,012			34,215
Investments in merchant banking funds	11,285			16,772
Goodwill	149,112			164,890
Deferred tax asset, net	47,062			47,512
Other assets	2,982			2,855
Total assets	$	332,676		$	386,970
Liabilities and Equity
Compensation payable	$	4,600		$	21,419
Accounts payable and accrued expenses	9,450			7,872
Bank loan payable	36,350			29,125
Current income taxes payable	11,921			15,797
Deferred tax liability	2,368			9,245
Total liabilities	64,689			83,458
Common stock, par value $0.01 per share; 100,000,000 shares authorized, 37,840,092 and 36,513,507 shares issued as of September 30, 2013 and December 31, 2012, respectively; 27,747,240 and 27,488,828 shares outstanding as of September 30, 2013 and December 31, 2012, respectively	378			365
Contingent convertible preferred stock, par value $0.01 per share; 10,000,000 shares authorized and 1,099,877 shares issued as of September 30, 2013 and December 31, 2012 and 439,951 and 1,099,877 shares outstanding as of September 30, 2013 and December 31, 2012, respectively	14,446			46,950
Restricted stock units	106,565			107,253
Additional paid-in capital	532,503			458,642
Exchangeable shares of subsidiary; 257,156 shares issued as of September 30, 2013 and December 31, 2012, respectively; 32,804 shares outstanding as of September 30, 2013 and December 31, 2012, respectively	1,958			1,958
Retained earnings	150,231			159,918
Accumulated other comprehensive income (loss)	(4,789		)	6,624
Treasury stock, at cost, par value $0.01 per share; 10,092,852 and 9,024,679 shares as of September 30, 2013 and December 31, 2012 respectively	(534,347		)	(479,551		)
Stockholders’ equity	266,945			302,159
Noncontrolling interests	1,042			1,353
Total equity	267,987			303,512
Total liabilities and equity	$	332,676		$	386,970

See accompanying notes to condensed consolidated financial statements (unaudited).

4

Greenhill & Co., Inc. and Subsidiaries

Condensed Consolidated Statements of Income (unaudited)

(in thousands except share and per share data)

	For the Three Months Ended, September 30,						For the Nine Months Ended, September 30,
	2013			2012			2013			2012
Revenues
Advisory revenues	$	46,983		$	72,757		$	211,496		$	191,160
Investment revenues	(2,440		)	(10,010		)	(672		)	1,594
Total revenues	44,543			62,747			210,824			192,754
Expenses
Employee compensation and benefits	27,073			33,290			115,202			102,932
Occupancy and equipment rental	4,672			4,627			13,322			13,370
Depreciation and amortization	861			1,775			3,612			5,463
Information services	2,042			2,103			6,020			6,192
Professional fees	1,297			1,304			4,050			4,038
Travel related expenses	2,879			2,270			9,360			8,359
Interest expense	241			242			769			750
Other operating expenses	2,529			3,158			8,453			9,337
Total expenses	41,594			48,769			160,788			150,441
Income before taxes	2,949			13,978			50,036			42,313
Provision for taxes	1,152			5,389			19,134			15,348
Consolidated net income	1,797			8,589			30,902			26,965
Less: Net income allocated to noncontrolling interests	—			—			—			—
Net income allocated to common stockholders	$	1,797		$	8,589		$	30,902		$	26,965
Average shares outstanding:
Basic	29,792,997			30,252,342			30,094,986			30,611,270
Diluted	29,805,553			30,260,808			30,122,352			30,618,837
Earnings per share:
Basic	$	0.06		$	0.28		$	1.03		$	0.88
Diluted	$	0.06		$	0.28		$	1.03		$	0.88
Dividends declared and paid per share	$	0.45		$	0.45		$	1.35		$	1.35

See accompanying notes to condensed consolidated financial statements (unaudited).

5

Greenhill & Co., Inc. and Subsidiaries

Condensed Consolidated Statements of Comprehensive Income (unaudited)

(in thousands)

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2013		2012		2013			2012
Consolidated net income	$	1,797	$	8,589	$	30,902		$	26,965
Currency translation adjustment, net of tax	3,190		3,276		(11,413		)	3,742
Comprehensive income	4,987		11,865		19,489			30,707
Less: Net income allocated to noncontrolling interests	—		—		—			—
Comprehensive income allocated to common stockholders	$	4,987	$	11,865	$	19,489		$	30,707

See accompanying notes to condensed consolidated financial statements (unaudited).

6

Greenhill & Co., Inc. and Subsidiaries

Condensed Consolidated Statements of Changes in Equity

(in thousands, except for per share data)

	Nine Months Ended September 30,			Year Ended December 31,
	2013			2012
	(unaudited)
Common stock, par value $0.01 per share
Common stock, beginning of the period	$	365		$	358
Common stock issued	13			7
Common stock, end of the period	378			365
Contingent convertible preferred stock, par value $0.01 per share
Contingent convertible preferred stock, beginning of the period	46,950			46,950
Contingent convertible preferred stock converted	(32,504		)	—
Contingent convertible preferred stock, end of the period	14,446			46,950
Restricted stock units
Restricted stock units, beginning of the period	107,253			99,916
Restricted stock units recognized	42,916			54,178
Restricted stock units delivered	(43,604		)	(46,841		)
Restricted stock units, end of the period	106,565			107,253
Additional paid-in capital
Additional paid-in capital, beginning of the period	458,642			412,283
Common stock issued	75,716			51,306
Tax (expense) from the delivery of restricted stock units	(1,855		)	(4,947		)
Additional paid-in capital, end of the period	532,503			458,642
Exchangeable shares of subsidiary
Exchangeable shares of subsidiary, beginning of the period	1,958			6,578
Exchangeable shares of subsidiary delivered	—			(4,620		)
Exchangeable shares of subsidiary, end of the period	1,958			1,958
Retained earnings
Retained earnings, beginning of the period	159,918			173,374
Dividends	(42,175		)	(57,129		)
Tax benefit from payment of restricted stock unit dividends	1,586			1,581
Net income allocated to common stockholders	30,902			42,092
Retained earnings, end of the period	150,231			159,918
Accumulated other comprehensive income (loss)
Accumulated other comprehensive income, beginning of the period	6,624			3,128
Currency translation adjustment, net of tax	(11,413		)	3,496
Accumulated other comprehensive income (loss), end of the period	(4,789		)	6,624
Treasury stock, at cost, par value $0.01 per share
Treasury stock, beginning of the period	(479,551		)	(396,386		)
Repurchased	(54,796		)	(83,165		)
Treasury stock, end of the period	(534,347		)	(479,551		)
Total stockholders’ equity	266,945			302,159
Noncontrolling interests
Noncontrolling interests, beginning of the period	1,353			1,353
Net income allocated to noncontrolling interests	—			—
Distributions to noncontrolling interests	(311		)	—
Noncontrolling interests, end of the period	1,042			1,353
Total equity	$	267,987		$	303,512

See accompanying notes to condensed consolidated financial statements (unaudited).

7

Greenhill & Co., Inc. and Subsidiaries

Condensed Consolidated Statements of Cash Flows (unaudited)

(in thousands)

	For the Nine Months Ended September 30,
	2013			2012
Operating activities:
Consolidated net income	$	30,902		$	26,965
Adjustments to reconcile consolidated net income to net cash provided by operating activities:
Non-cash items included in consolidated net income:
Depreciation and amortization	3,612			5,463
Net investment gains	1,612			(100		)
Restricted stock units recognized and common stock issued	42,916			42,008
Deferred taxes	(2,809		)	(13,683		)
Deferred gain on sale of certain merchant banking assets	(147		)	(194		)
Changes in operating assets and liabilities:
Advisory fees receivable	(10,201		)	(5,549		)
Other receivables and assets	(3,578		)	(1,174		)
Compensation payable	(16,807		)	(27,098		)
Accounts payable and accrued expenses	3,326			7,607
Current income taxes payable	(3,876		)	1,989
Net cash provided by operating activities	44,950			36,234
Investing activities:
Purchases of investments	(500		)	(6,536		)
Proceeds from sales of investments	26,582			24,914
Distributions from investments	1,004			3,040
Purchases of property and equipment	(637		)	(2,106		)
Net cash provided by investing activities	26,449			19,312
Financing activities:
Proceeds from revolving bank loan	89,900			62,595
Repayment of revolving bank loan	(82,675		)	(55,270		)
Distributions to noncontrolling interests	(311		)	—
Dividends paid	(42,175		)	(42,221		)
Purchase of treasury stock	(54,796		)	(40,497		)
Net tax (cost) from the delivery of restricted stock units and payment of dividend equivalents	(269		)	(4,430		)
Net cash used in financing activities	(90,326		)	(79,823		)
Effect of exchange rate changes on cash and cash equivalents	(1,053		)	334
Net decrease in cash and cash equivalents	(19,980		)	(23,943		)
Cash and cash equivalents, beginning of period	50,324			62,050
Cash and cash equivalents, end of period	$	30,344		$	38,107
Supplemental disclosure of cash flow information:
Cash paid for interest	$	761		$	763
Cash paid for taxes, net of refunds	$	27,040		$	24,742

See accompanying notes to condensed consolidated financial statements (unaudited).

8

Greenhill & Co., Inc. and Subsidiaries

Notes to Condensed Consolidated Financial Statements (unaudited)

Note 1 — Organization

Greenhill & Co., Inc., a Delaware corporation, together with its subsidiaries (collectively, the “Company”), is a leading independent investment bank focused on providing financial advice on significant mergers, acquisitions, restructurings, financings and capital raisings to corporations, partnerships, institutions and governments. The Company acts for clients located throughout the world from its offices located in the United States, United Kingdom, Germany, Canada, Japan, Australia, Sweden and Brazil.

The Company's activities as an investment banking firm constitute one business segment, with two principal sources of revenue:

• Advisory, which includes engagements relating to mergers and acquisitions, financing advisory and restructuring, and private equity and real estate capital advisory services; and

• Investments, which includes the Company's principal investments in certain merchant banking funds, Iridium Communications Inc. (“Iridium”), other investments and interest income.

The Company's wholly-owned subsidiaries that provide advisory services include Greenhill & Co., LLC (“G&Co”), Greenhill & Co. International LLP (“GCI”), Greenhill & Co. Europe LLP (“GCE”), Greenhill & Co. Canada Ltd. (“GCC”), Greenhill & Co. Japan Ltd. (“GCJ”), Greenhill & Co. Australia Pty Limited (“Greenhill Australia”), and Greenhill & Co. Sweden AB ("GCS").

G&Co is engaged in investment banking activities principally in the U.S. G&Co is registered as a broker-dealer with the Securities and Exchange Commission (“SEC”) and the Financial Industry Regulatory Authority (“FINRA”), and is licensed in all 50 states and the District of Columbia. G&Co is also registered as a municipal advisor with the SEC and the Municipal Securities Rulemaking Board.

GCI is engaged in investment banking activities in the U.K. and GCE is engaged in investment banking activities in Europe. GCI and GCE are subject to regulation by the U.K. Financial Conduct Authority (“FCA”). GCJ and GCC are engaged in investment banking activities in Japan and Canada, respectively. GCJ is registered with the Kanto Local Finance Bureau in Japan and is subject to regulation by the Financial Services Agency in Japan. Greenhill Australia engages in investment banking activities in Australia and New Zealand and is licensed and subject to regulation by the Australian Securities and Investment Commission (“ASIC”). GCS is engaged in investment banking activities in Sweden and the general Nordic region and is subject to regulation by the Swedish Financial Supervisory Authority.

Note 2 — Summary of Significant Accounting Policies

Basis of Financial Information

These condensed consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States (U.S. GAAP), which require management to make estimates and assumptions regarding future events that affect the amounts reported in our financial statements and these footnotes, including investment valuations, compensation accruals and other matters. Management believes that the estimates used in preparing its condensed consolidated financial statements are reasonable and prudent. Actual results could differ materially from those estimates. Certain reclassifications have been made to prior year information to conform to current year presentation.

The condensed consolidated financial statements of the Company include all consolidated accounts of Greenhill & Co., Inc. and all other entities in which the Company has a controlling interest after eliminations of all significant inter-company accounts and transactions. In accordance with the accounting pronouncements related to consolidation of variable interest entities, the Company consolidates the general partners of certain merchant banking funds in which it has a majority of the economic interest and control. The general partners account for their investments in these merchant banking funds under the equity method of accounting. As such, the general partners record their proportionate shares of income (loss) from the underlying merchant banking funds. As these merchant banking funds follow investment company accounting, and generally record all their assets and liabilities at fair value, the general partners’ investment in these merchant banking funds represents an estimation of fair value. The Company does not consolidate the merchant banking funds since the Company, through its general partner and limited partner interests, does not have a majority of the economic interest in such funds and the limited partners have certain rights to remove the general partner by a simple majority vote of unaffiliated third-party investors.

9

These condensed consolidated financial statements are unaudited and should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2012 included in the Company's Annual Report on Form 10-K filed with the SEC. The condensed consolidated financial information as of December 31, 2012 has been derived from audited consolidated financial statements not included herein. The results of operations for interim periods are not necessarily indicative of results for the entire year.

Revenue Recognition

Advisory Revenues

The Company's accounting policy is to recognize revenue when (i) there is persuasive evidence of an arrangement with a client, (ii) the agreed-upon services have been completed and delivered to the client or the transaction or events noted in the engagement letter are determined to be substantially complete, (iii) fees are fixed and determinable, and (iv) collection is reasonably assured.

The Company recognizes advisory fee revenues for mergers and acquisitions or financing advisory and restructuring engagements when the services related to the underlying transactions are completed in accordance with the terms of the engagement letter and all other requirements for revenue recognition are satisfied.

The Company recognizes private equity and real estate capital advisory fees at the time of the client's acceptance of capital or capital commitments to a fund in accordance with the terms of the engagement letter. Generally, fee revenue is determined based upon a fixed percentage of capital committed to the fund. For multiple closings, revenue is recognized at each interim closing based on the amount of capital committed at each closing at the fixed fee percentage. At the final closing, revenue is recognized at the fixed percentage for the amount of capital committed since the last interim closing.

While the majority of the Company's fee revenue is earned at the conclusion of a transaction or closing of a fund, on-going retainer fees, substantially all of which relate to non-success based strategic advisory and financing advisory and restructuring assignments, are also earned and recognized as advisory fee revenue over the period in which the related service is rendered.

The Company’s clients reimburse certain expenses incurred by the Company in the conduct of advisory engagements. Expenses are reported net of such client reimbursements. Client reimbursements totaled $1.3 million and $1.6 million for the three months ended September 30, 2013 and 2012, respectively and $4.8 million and $5.4 million for the nine months ended September 30, 2013 and 2012, respectively.

Investment Revenues

Investment revenues consist of (i) gains (or losses) on the Company's investments in certain merchant banking funds, Iridium and other investments, (ii) profit overrides from certain merchant banking funds, if any, and (iii) interest income.

The Company recognizes revenue on its investments in merchant banking funds based on its allocable share of realized and unrealized gains (or losses) reported by such funds. The Company recognizes revenue on its other investments, including Iridium, which considers the Company's influence or control of the investee, based on gains and losses on investment positions held, which arise from sales or changes in the fair value of investments. The amount of gains or losses are not predictable and can cause periodic fluctuations in net income and therefore subject the Company to market and credit risk.

If certain financial returns are achieved over the life of a merchant banking fund, the Company may recognize merchant banking profit overrides at the time that certain financial returns are achieved. Profit overrides are generally calculated as a percentage of the profits over a specified threshold earned by each fund on investments managed on behalf of unaffiliated investors except the Company. The Company may be required to repay a portion of the overrides it realized in the event a minimum performance level is not achieved by the fund as a whole (we refer to these potential repayments as “clawbacks”). As of September 30, 2013, the Company believes it is more likely than not that the amount of profit overrides recognized as revenue in prior periods, which relates solely to its interest in GCP I, will be realized and accordingly, the Company has not reserved for any clawback obligations under applicable fund agreements.

Cash and Cash Equivalents

The Company’s cash and cash equivalents consist of (i) cash held on deposit with financial institutions, (ii) cash equivalents and (iii) restricted cash.

10

At September 30, 2013 and December 31, 2012, the Company had $30.3 million and $50.3 million of cash and cash equivalents. The Company considers all highly liquid investments with a maturity date of three months or less, when purchased, to be cash equivalents. Cash equivalents primarily consist of money market funds and overnight deposits. At September 30, 2013 and December 31, 2012, the carrying value of the Company’s cash equivalents amounted to $6.8 million and $4.5 million, respectively, which approximated fair value, and are included in total cash and cash equivalents.

Also included in the total cash and cash equivalents balance at September 30, 2013 and December 31, 2012 was restricted cash of $5.2 million and $7.1 million, respectively (including $0.9 million and $2.6 million restricted for the payout of Greenhill Australia's deferred compensation plan, respectively).

The Company maintains its cash and cash equivalents with financial institutions with high credit ratings. Management believes that the Company is not exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held.

Advisory Fees Receivables

Receivables are stated net of an allowance for doubtful accounts. The estimate for the allowance for doubtful accounts is derived by the Company by utilizing past client transaction history and an assessment of the client’s creditworthiness. The Company did not record a charge for bad debt expense for either of the three or nine month periods ended September 30, 2013 or 2012.

Included in the advisory fees receivable balance at September 30, 2013 and December 31, 2012 were $24.9 million and $28.1 million, respectively, of long term receivables related to private equity and real estate capital advisory engagements, which are generally paid in installments over a period of three years. Included as a component of investment revenues on the condensed consolidated statements of income is interest income related to capital advisory engagements of $0.3 million and $0.5 million for the three month periods ended September 30, 2013 and 2012, respectively, and $0.6 million and $0.9 million for the nine month periods ended September 30, 2013 and 2012, respectively.

Credit risk related to advisory fees receivable is disbursed across a large number of clients located in various geographic areas. The Company controls credit risk through credit approvals and monitoring procedures but does not require collateral to support accounts receivable.

Investments

The Company's investment in Iridium is valued using its quoted market price. The Company's investments in merchant banking funds are recorded under the equity method of accounting based upon the Company's proportionate share of the estimated fair value of the underlying merchant banking fund's net assets. The value of merchant banking fund investments in privately held companies is determined by the general partner of the fund after giving consideration to the cost of the security, the pricing of other sales of securities by the portfolio company, the price of securities of other companies comparable to the portfolio company, purchase multiples paid in other comparable third-party transactions, the original purchase price multiple, market conditions, liquidity, operating results and other qualitative and quantitative factors. Discounts may be applied to the funds' privately held investments to reflect the lack of liquidity and other transfer restrictions. Because of the inherent uncertainty of valuations as well as the discounts applied, the estimated fair values of investments in privately held companies may differ significantly from the values that would have been used had a ready market for the securities existed. The value of merchant banking fund investments in publicly traded securities is determined using quoted market prices discounted for any legal or contractual restrictions on sale. The values at which the Company's investments are carried on its condensed consolidated statements of financial condition are adjusted to estimated fair value at the end of each quarter and the volatility in general economic conditions, stock markets and commodity prices may result in significant changes in the estimated fair value of the investments from period to period.

Goodwill

Goodwill is the cost of acquired companies in excess of the fair value of identifiable net assets at acquisition date. The Company tests its goodwill for impairment at least annually. An impairment loss is triggered if the estimated fair value of an operating unit is less than estimated net book value. Such loss is calculated as the difference between the estimated fair value of goodwill and its carrying value.

Goodwill is translated at the rate of exchange prevailing at the end of the periods presented in accordance with the accounting guidance for foreign currency translation. Any translation gain or loss is included in the foreign currency translation adjustment, which is included as a component of other comprehensive income in the condensed consolidated statements of changes in equity. At September 30, 2013, goodwill decreased by $15.8 million from the beginning of the year as a result of the foreign currency translation adjustment.

11

Restricted Stock Units

The Company accounts for its share-based compensation payments under which the fair value of restricted stock units granted to employees with future service requirements is recorded as compensation expense and the units are generally amortized over a three to five year service period following the date of grant. Compensation expense is determined based upon the fair market value of the Company’s common stock at the date of grant. As the Company expenses the awards, the restricted stock units recognized are recorded within equity. The restricted stock units are reclassified into common stock and additional paid-in capital upon vesting. The Company records as treasury stock the repurchase of stock delivered to its employees in settlement of tax liabilities incurred upon the vesting of restricted stock units. The Company records dividend equivalent payments on outstanding restricted stock units as a dividend payment and a charge to equity.

Earnings per Share

The Company calculates basic earnings per share (“EPS”) by dividing net income allocated to common stockholders by the weighted average number of shares outstanding for the period. The denominator for basic EPS includes the weighted average number of shares deemed issuable due to the vesting of restricted stock units for accounting purposes and the contingently issuable convertible preferred shares deemed to meet the performance contingency.

Diluted EPS includes the determinants of basic EPS plus the dilutive effect of the common stock deliverable pursuant to restricted stock units for which future service is required as a condition to the delivery of the underlying common stock. Under the treasury method, the number of shares issuable upon the vesting of restricted stock units included in the calculation of diluted EPS is the excess, if any, of the number of shares expected to be issued, less the number of shares that could be purchased by the Company with the proceeds to be received upon settlement at the average market closing price during the reporting period.

Provision for Taxes

The Company accounts for taxes in accordance with the accounting guidance for income taxes which requires the recognition of tax benefits or expenses on the temporary differences between the financial reporting and tax bases of its assets and liabilities.

The Company follows the guidance for income taxes in recognizing, measuring, presenting and disclosing in its financial statements uncertain tax positions taken or expected to be taken on its income tax returns. Income tax expense is based on pre-tax accounting income, including adjustments made for the recognition or derecognition related to uncertain tax positions. The recognition or derecognition of income tax expense related to uncertain tax positions is determined under the guidance.

Deferred tax assets and liabilities are recognized for the future tax attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in earnings in the period of change. Management applies the “more-likely-than-not criteria” when determining tax benefits.

Foreign Currency Translation

Assets and liabilities denominated in foreign currencies have been translated at rates of exchange prevailing at the end of the periods presented in accordance with the accounting guidance for foreign currency translation. Income and expenses transacted in foreign currency have been translated at average monthly exchange rates during the period. Translation gains and losses are included in the foreign currency translation adjustment, which is included as a component of other comprehensive income in the condensed consolidated statements of changes in equity. Foreign currency transaction gains and losses are included in the condensed consolidated statements of income.

Financial Instruments and Fair Value

The Company accounts for financial instruments measured at fair value in accordance with accounting guidance for fair value measurements and disclosures which establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under the pronouncement are described below:

Basis of Fair Value Measurement

Level 1 – Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

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Level 2 – Quoted prices in markets that are not active or financial instruments for which all significant inputs are observable, either directly or indirectly; and

Level 3 – Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. In determining the appropriate levels, the Company performs an analysis of the assets and liabilities that are subject to these disclosures. At each reporting period, all assets and liabilities for which the fair value measurement is based on significant unobservable inputs or instruments which trade infrequently and therefore have little or no price transparency are classified as Level 3. Transfers between levels are recognized as of the end of the period in which they occur.

Fair Value of Other Financial Instruments

The Company believes that the carrying values of all other financial instruments presented in the condensed consolidated statements of financial condition approximate their fair value generally due to their short-term nature and generally negligible credit risk. These fair value measurements would be categorized as Level 2 within the fair value hierarchy.

Noncontrolling Interests

The portion of the consolidated interests in the general partners of certain of the merchant banking funds not held by the Company is presented as noncontrolling interest, included as a component of equity in the condensed consolidated statements of financial condition. Additionally, the condensed consolidated statements of income separately present income allocated to both noncontrolling interests and common stockholders.

Property and Equipment

Property and equipment is stated at cost less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the life of the assets. Amortization of leasehold improvements is computed using the straight-line method over the lesser of the life of the asset or the remaining term of the lease. Estimated useful lives of the Company’s fixed assets are generally as follows:

Aircraft – 7 years

Equipment – 5 years

Furniture and fixtures – 7 years

Leasehold improvements – the lesser of 10 years or the remaining lease term

Note 3 — Investments

Merchant Banking Funds

The Company has invested in certain previously sponsored merchant banking funds: Greenhill Capital Partners (“GCP I”) and Greenhill Capital Partners II (“GCP II”), which are families of merchant banking funds. In July 2013, the Company sold the remaining limited partnership interest in Greenhill Capital Partners III for approximately $2.0 million, which represented the book value of the investment at June 30, 2013. In connection with that sale, the purchasers assumed the remaining undrawn commitments to the fund.

The Company recognized a gain at the time of the exit from the merchant banking business, which is amortizing over a five year period ending in 2014.

As of September 30, 2013, the Company continues to retain control only of the general partner of GCP I and GCP II and consolidates the results of each such general partner. As the general partner, the Company is entitled to receive from those funds a portion of the override of the profits realized from investments. The Company recognizes profit overrides related to certain merchant banking funds at the time certain performance hurdles are achieved. The Company did not recognize any profit overrides for the three or nine month periods ended September 30, 2013 and 2012.

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The carrying value of the Company’s investments in merchant banking funds are as follows (in thousands):

	As of September 30,		As of December 31,
	2013		2012
	(unaudited)
Investment in GCP I	$	1,732	$	2,247
Investment in GCP II	7,627		11,173
Investment in GCP III	—		1,367
Investment in other merchant banking funds	1,926		1,985
Total investments in merchant banking funds	$	11,285	$	16,772

The investment in GCP I represents an interest in a previously sponsored merchant banking fund and includes $0.1 million and $0.3 million at September 30, 2013 and December 31, 2012, respectively, related to the noncontrolling interests in the managing general partner of GCP I. The investment in GCP II principally represents the capital interest in a portfolio company and also includes $0.9 million and $1.1 million at September 30, 2013 and December 31, 2012, respectively, related to the noncontrolling interests in the general partner of GCP II.

Approximately $0.3 million of the Company’s compensation payable related to profit overrides for unrealized gains of GCP I at September 30, 2013 and December 31, 2012. This amount may increase or decrease depending on the change in the fair value of GCP I, and is payable, subject to clawback, at the time cash proceeds are realized.

Investments in other merchant banking funds includes the Company's investment in Barrow Street III, a real estate investment fund, which we committed $5.0 million to in 2005. At September 30, 2013, $0.1 million of the Company's commitment remains unfunded and may be drawn any time prior to the expiration of the fund in June 2015.

Other Investments

The Company has other investments including investments in Iridium and certain deferred compensation plan investments related to Greenhill Australia. The Company’s other investments are as follows (in thousands):

	As of September 30,		As of December 31,
	2013		2012
	(unaudited)
Iridium common stock	$	10,978	$	34,165
Deferred compensation plan investments	34		50
Total other investments	$	11,012	$	34,215

Iridium

At September 30, 2013, the Company owned 1,595,629 shares of Iridium common stock (NASDAQ:IRDM) with a quoted market price of $6.88 per share and had fully diluted share ownership in Iridium of approximately 2%. At December 31, 2012, the Company owned 5,084,016 shares of Iridium common stock with a quoted market price of $6.72 per share and had a fully diluted ownership of approximately 7%.

The carrying value of the investment in Iridium common stock is valued at the end of each period and its closing quoted market price. The Company’s investment in Iridium is accounted for as a trading security as the Company does not maintain or exercise significant influence over Iridium.

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Deferred compensation plan investments

In connection with the acquisition of Caliburn Partnership Pty Limited ("Caliburn"), the Company assumed amounts due under Caliburn's deferred compensation plan. Under this plan, a portion of certain employees' compensation was deferred and invested in cash, or at the election of each respective employee, in certain mutual fund investments. These investments are being distributed to certain employees of Greenhill Australia over a period ending in 2016. The invested assets relating to this plan have been recorded on the condensed consolidated statements of financial condition as components of both cash and cash equivalents and other investments. The deferred compensation liability relating to the plan has been recorded on the condensed consolidated statements of financial condition as a component of compensation payable. Subsequent to the acquisition, the Company discontinued future participation in the plan.

Investment revenues

The Company’s investment revenues, by source, are as follows:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2013			2012			2013			2012
	(in thousands, unaudited)
Net realized and unrealized gains (losses) on investment in Iridium	$	(3,223	)	$	(10,826	)	$	1,347		$	(1,153	)
Net realized and unrealized gains (losses) on investments in merchant banking funds	394			161			(2,959		)	1,253
Deferred gain on sale of certain merchant banking assets	49			65			147			195
Interest income	340			590			793			1,299
Total investment revenues	$	(2,440	)	$	(10,010	)	$	(672	)	$	1,594

Fair Value Hierarchy

The following tables set forth by level, assets and liabilities measured at fair value on a recurring basis. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. There were no transfers between Level 1 and Level 2 investments in the fair value measurement hierarchy during the three and nine month periods ended September 30, 2013 and 2012.

Assets Measured at Fair Value on a Recurring Basis as of September 30, 2013

	Quoted Prices in Active  Markets for Identical Assets (Level 1)		Significant Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)		Balance as of September 30, 2013
	(in thousands)
Assets
Iridium common stock	$	10,978	$	—	$	—	$	10,978
Deferred compensation plan investments	—		34		—		34
Total investments	$	10,978	$	34	$	—	$	11,012

Assets Measured at Fair Value on a Recurring Basis as of December 31, 2012

	Quoted Prices in Active  Markets for Identical Assets (Level 1)		Significant Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)		Balance as of December 31, 2012
	(in thousands)
Assets
Iridium common stock	$	34,165	$	—	$	—	$	34,165
Deferred compensation plan investments	—		50		—		50
Total investments	$	34,165	$	50	$	—	$	34,215

Level 3 Gains and Losses

There were no Level 3 investments during the three and nine month periods ended September 30, 2013 and 2012.

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Note 4 — Related Parties

At September 30, 2013 and December 31, 2012, the Company had no amounts receivable or payable to related parties.

In conjunction with the sale of certain assets of the merchant banking business, the Company agreed to sublease office space to GCP Capital beginning in April 2011. This sublease is expected to terminate in December 2013. The Company also subleases airplane and office space to a firm owned by the Chairman of the Company. The Company recognized rent reimbursements of $0.4 million and $1.2 million for each of the three and nine month periods ended September 30, 2013 and 2012, respectively, which are included as a reduction of occupancy and equipment rental on the condensed consolidated statements of income.

Note 5 — Revolving Bank Loan Facility

At September 30, 2013, the Company had a $45.0 million revolving loan facility from a U.S. banking institution to provide for working capital needs and for other general corporate purposes. Effective May 1, 2013, the loan facility was renewed, with a maturity date of April 30, 2014. The revolving loan facility is secured by any cash distributed in respect of the Company’s investment in the U.S. based merchant banking funds and cash distributions from G&Co. In addition, the revolving loan facility has a prohibition on the incurrence of additional indebtedness without the prior approval of the lender and the Company is required to comply with certain financial and liquidity covenants. The weighted average daily borrowings outstanding under the revolving loan facility were approximately $30.9 million and $27.3 million for the nine months ended September 30, 2013 and 2012, respectively. The weighted average interest rate was 3.25% and 3.55% for the nine months ended September 30, 2013 and 2012, respectively. At September 30, 2013, the Company was compliant with all loan covenants.

Note 6 — Equity

On September 18, 2013, a dividend of $0.45 per share was paid to stockholders of record on September 4, 2013. Dividends include dividend equivalents of $4.7 million and $4.2 million, which were paid on outstanding restricted stock units during the nine months ended September 30, 2013 and September 30, 2012, respectively.

During the nine months ended September 30, 2013, 662,569 restricted stock units vested and were issued as common stock of which the Company is deemed to have repurchased 214,303 shares at an average price of $57.22 per share in conjunction with the payment of tax liabilities in respect of stock delivered to its employees in settlement of restricted stock units. In addition, during the nine months ended September 30, 2013, the Company repurchased in open market transactions 853,870 shares of its common stock at an average price of $49.81 per share.

During the nine months ended September 30, 2012, 632,794 restricted stock units vested and were issued as common stock of which the Company is deemed to have repurchased 176,781 shares at an average price of $45.21 per share in conjunction with the payment of tax liabilities in respect of stock delivered to its employees in settlement of restricted stock units. In addition, during the nine months ended September 30, 2012, the Company repurchased in open market transactions 859,006 shares of its common stock at an average price of $37.84 per share.

In connection with the acquisition of Caliburn, 1,099,877 shares of contingent convertible preferred stock ("Performance Stock") were issued. The Performance Stock, which does not pay dividends, was issued in tranches of 659,926 shares and 439,951 shares and converts to shares of the Company's common stock promptly after the third and fifth anniversary of the closing of the acquisition, respectively, if certain separate revenue targets are achieved. The revenue target for the first tranche was achieved and on April 1, 2013, the third anniversary of the closing, 659,926 shares of Performance Stock, which had a fair value of $32.5 million at the acquisition date, were converted to common stock. If the revenue target for the second tranche is achieved the Performance Stock will be converted to common stock on April 1, 2015. If the revenue target for the second tranche is not achieved, the Performance Stock in that tranche will be canceled.

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Note 7 — Earnings Per Share

The computations of basic and diluted EPS are set forth below:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2013		2012		2013		2012
	(in thousands, except per share  amounts, unaudited)
Numerator for basic and diluted EPS — net income allocated to common stockholders	$	1,797	$	8,589	$	30,902	$	26,965
Denominator for basic EPS — weighted average number of shares	29,793		30,252		30,095		30,611
Add — dilutive effect of:
Weighted average number of incremental shares issuable from restricted stock units	13		8		27		8
Denominator for diluted EPS — weighted average number of shares and dilutive potential shares	29,806		30,260		30,122		30,619
Earnings per share:
Basic	$	0.06	$	0.28	$	1.03	$	0.88
Diluted	$	0.06	$	0.28	$	1.03	$	0.88

The weighted number of shares and dilutive potential shares for the three and nine month periods ended September 30, 2013 include the conversion of the first tranche of 659,926 shares of Performance Stock to common stock. The weighted number of shares for the three and nine month periods ended September 30, 2012 do not include the dilutive effect of the first tranche of Performance Stock since the revenue target was not achieved at that time. The weighted number of shares and dilutive potential shares for the three and nine month periods ended September 30, 2013 and 2012 do not include the Performance Stock related to the second tranche, which will be included in the Company's share count at the time the revenue target is met. If the revenue target for the second tranche is not achieved, the contingent convertible preferred shares in that tranche will be canceled.

Note 8 — Income Taxes

The Company's effective tax rate will vary depending on the source of the income. Investment and certain foreign sourced income are taxed at a lower effective rate than U.S. trade or business income.

The Company believes it is more likely than not that the deferred tax asset, which relates principally to compensation expense deducted for book purposes but not yet deducted for tax purposes, will be realized as offsets to: (i) the realization of its deferred tax liabilities and (ii) future taxable income.

Any gain or loss resulting from the translation of deferred taxes for foreign affiliates is included in the foreign currency translation adjustment incorporated as a component of other comprehensive income, net of tax, in the condensed consolidated statements of changes in equity and the condensed consolidated statements of comprehensive income.

The Company's income tax returns are routinely examined by the U.S. federal, U.S. state, and international tax authorities. The Company regularly assesses its tax positions with respect to applicable income tax issues for open tax years in each respective jurisdiction in which the Company operates. As of September 30, 2013, the Company does not believe the resolution of any current ongoing income tax examinations will have a material adverse impact on the financial position of the Company.

Note 9 — Regulatory Requirements

Certain subsidiaries of the Company are subject to various regulatory requirements in the United States, United Kingdom, Australia and certain other jurisdictions, which specify, among other requirements, minimum net capital requirements for registered broker-dealers.

G&Co is subject to the SEC’s Uniform Net Capital requirements under Rule 15c3-1 (the “Rule”), which specifies, among other requirements, minimum net capital requirements for registered broker-dealers. The Rule requires G&Co to maintain a minimum net capital of the greater of $5,000 or 1/15 of aggregate indebtedness, as defined in the Rule. As of September 30, 2013, G&Co’s net capital was $1.4 million, which exceeded its requirement by $1.1 million. G&Co’s aggregate indebtedness to net capital ratio was 2.72 to 1 at September 30, 2013. Certain distributions and other capital withdrawals of G&Co are subject to certain notifications and restrictive provisions of the Rule.

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GCI and GCE are subject to capital requirements of the FCA. Greenhill Australia is subject to capital requirements of the ASIC. We are also subject to certain capital regulatory requirements in other jurisdictions. As of September 30, 2013, GCI, GCE, Greenhill Australia, and our other regulated operations were in compliance with local capital adequacy requirements.

Note 10 - Business Information

The Company's activities as an investment banking firm constitute one business segment, with two principal sources of revenue:

•     Advisory, which includes engagements relating to mergers and acquisitions, financing advisory and restructuring, and private equity and real estate capital advisory services; and

• Investment, which includes the Company's principal investments in merchant banking funds, Iridium and other investments and interest.

The following provides a breakdown of our revenues by source for the three and nine month periods ended September 30, 2013 and 2012, respectively:

	For the Three Months Ended
	September 30, 2013					September 30, 2012
	Amount		% of Total			Amount		% of Total
	(in millions, unaudited)
Advisory revenues	$47.0			105	%	$72.7			116	%
Investment revenues	(2.4	)		(5	)%	(10.0	)		(16	)%
Total revenues	$44.6			100	%	$62.7			100	%

	For the Nine Months Ended
	September 30, 2013					September 30, 2012
	Amount		% of Total			Amount	% of Total
	(in millions, unaudited)
Advisory revenues	$211.5			100	%	$191.2		99	%
Investment revenues	(0.7	)		—	%	1.6		1	%
Total revenues	$210.8			100	%	$192.8		100	%

In reporting to management, the Company distinguishes the sources of its revenues between advisory and investment revenues. However, management does not evaluate other financial data or operating results such as operating expenses, profit and loss or assets by its advisory and investment activities.

Note 11 — Subsequent Events

The Company evaluates subsequent events through the date on which the financial statements are issued.

On October 16, 2013, the Board of Directors of the Company declared a quarterly dividend of $0.45 per share. The dividend will be payable on December 18, 2013 to the common stockholders of record on December 4, 2013.

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Item 2.  Management’s Discussion and Analysis of Financial Condition and Results of Operations

In this Management's Discussion and Analysis of Financial Condition and Results of Operations, “we”, “our”, “Firm” and “us” refer to Greenhill & Co., Inc.

This Management's Discussion and Analysis of Financial Condition and Results of Operations should be read in conjunction with our Annual Report on Form 10-K for the fiscal year ended December 31, 2012 and subsequent Forms 8-K.

Cautionary Statement Concerning Forward-Looking Statements

The following discussion should be read in conjunction with our condensed consolidated financial statements and the related notes that appear elsewhere in this report. We have made statements in this discussion that are forward-looking statements. In some cases, you can identify these statements by forward-looking words such as “may”, “might”, “will”, “should”, “expect”, “plan”, “anticipate”, “believe”, “estimate”, “intend”, “predict”, “potential” or “continue”, the negative of these terms and other comparable terminology. These forward-looking statements, which are subject to risks, uncertainties and assumptions about us, may include projections of our future financial performance, based on our growth strategies and anticipated trends in our business. These statements are only predictions based on our current expectations and projections about future events. There are important factors that could cause our actual results, level of activity, performance or achievements to differ materially from the results, level of activity, performance or achievements expressed or implied by the forward-looking statements. In particular, you should consider the numerous risks outlined under “Risk Factors” in our 2012 Annual Report on Form 10-K.

Although we believe the expectations reflected in the forward-looking statements are reasonable, we cannot guarantee future results, level of activity, performance or achievements. Moreover, neither we nor any other person assumes responsibility for the accuracy or completeness of any of these forward-looking statements. You should not rely upon forward-looking statements as predictions of future events. We are under no duty to and we do not undertake any obligation to update or review any of these forward-looking statements after the date of this filing to conform our prior statements to actual results or revised expectations whether as a result of new information, future developments or otherwise.

Overview

Greenhill is a leading independent investment bank focused on providing financial advice related to significant mergers, acquisitions, restructurings, financings and capital raisings to corporations, partnerships, institutions and governments. We represent clients throughout the world and have offices located in the United States, United Kingdom, Germany, Canada, Japan, Australia, Sweden and Brazil.

Our revenues are principally derived from advisory services on mergers and acquisitions, or M&A, financings and restructurings and are primarily driven by total deal volume and size of individual transactions. Additionally, our private capital and real estate capital advisory group provides fund placement and other capital raising advisory services, where revenues are driven primarily by the amount of capital raised.

Greenhill was established in 1996 by Robert F. Greenhill, the former President of Morgan Stanley and former Chairman and Chief Executive Officer of Smith Barney. Since our founding, Greenhill has grown steadily, recruiting a number of managing directors from major investment banks (as well as senior professionals from other institutions), with a range of geographic, industry and transaction specialties as well as different sets of corporate management and other relationships. As part of this expansion, we opened a London office in 1998, opened a Frankfurt office in 2000 and began offering financial restructuring advice in 2001. On May 11, 2004, we completed an initial public offering of our common stock. We opened our second U.S. office in 2005 and we currently have five offices in the U.S. We opened a Canadian office in 2006. In 2008, we opened an office in Tokyo. In 2008, we also entered the capital advisory business, which provides capital raisings advice and related services to private equity and real estate funds. In 2010, we acquired the Australian advisory firm, Caliburn, which has two Australian offices. In 2012, we opened our Stockholm office. In October 2013, we opened an office in São Paulo, Brazil.

Beginning in 2011, we initiated the monetization of our investments in both our previously sponsored merchant banking funds and Iridium. In 2011, we sold substantially all of our interests in GCP II and GSAVP for $49.4 million, which represented the book value of the investments. In 2012, we repurchased interests in two portfolio companies of GCP II for $15.5 million upon exercise of put rights. Also in 2012, we sold our entire interest in GCP Europe for $27.2 million, which represented approximately 90% of its book value. In July 2013, we sold our investment in GCP III for $2.0 million, which represented the book value of our investment. In conjunction with that sale we eliminated our last remaining commitment to merchant banking fund investments.

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Beginning in October 2011, we initiated a plan to sell our entire interest in Iridium (NASDAQ: IRDM) systematically over a period expected to be two or more years. As of September 30, 2013, we have sold approximately 84% of our holdings in Iridium, which generated proceeds of $60.8 million. The net proceeds of the merchant banking fund and Iridium sales have been used principally to repurchase our common stock and reduce the outstanding amount of our revolving loan facility.

Business Environment

Economic and global financial market conditions can materially affect our financial performance. See “Risk Factors” in our 2012 Annual Report on Form 10-K filed with Securities and Exchange Commission. Revenues and net income in any period may not be indicative of full year results or the results of any other period and may vary significantly from year to year and quarter to quarter.

Advisory revenues were $47.0 million in the third quarter of 2013 compared to $72.7 million in the third quarter of 2012, which represents a decrease of 35%. Although the third quarter of 2013 was a slow quarter for transaction activity for the Firm, and the market generally, on a year to date basis for the nine months ended September 30, 2013, our advisory revenues were $211.5 million compared to $191.2 million for the comparable period in 2012, which represents an increase of 11%. During the nine month period ended September 30, 2013, in comparison to the same period in 2012 the worldwide number of completed M&A transactions decreased 13%, the number of completed $1 billion or greater transactions decreased 15% and worldwide completed transaction volume (the sum of all deal sizes) decreased by 1% from 1,485 billion to 1,465 billion⁽¹⁾. Despite the challenging market, we continue to expect our advisory revenues for 2013 to be up slightly, or at least close to last year's level.

We believe our business performance is best measured over longer periods of time, and in that regard it is noteworthy that our advisory revenues for the twelve month period ending September 30, 2013 (a measure we refer to as trailing twelve months advisory revenues) was approximately $312 million. In terms of geographic diversity, during the first nine months of 2013, North America, and specifically the U.S. M&A business, continued to be the strongest performing region for us, consistent with the global market statistics by region. Our European business showed significant improvement in the first nine months of 2013 compared to the same period in 2012 in what continued to be a difficult economic and transaction environment in that market. Our Australian revenue declined year-over-year, in what was a more challenging environment than in previous years. For the full year, we expect results for North America will be similar to last year, with improvement in Europe off-setting a decline in Australia.

We generally experience significant variations in revenues and profits from quarter to quarter. These variations can generally be attributed to the fact that our revenues are usually earned in large amounts throughout the year upon the successful completion of a transaction or restructuring or closing of a fund, the timing of which is uncertain and is not subject to our control. Moreover, the value of our principal investments may vary significantly from period to period and depends on a number of factors beyond our control, including most notably credit and public equity markets and general economic conditions. As a result, our quarterly results vary and our results in one period may not be indicative of our results in any future period.

________________________

(1) Global M&A completed volume and number of transactions for the nine months ended September 30, 2013 as compared to the nine months ended September 30, 2012. Source: Thompson Financial as of October 30, 2013. The number of transactions excludes transactions less than $100,000.

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Results of Operations

Summary

Our total revenues of $44.5 million for the third quarter of 2013 compared to total revenues of $62.7 million for the third quarter of 2012, which represented a decrease of $18.2 million, or 29%. Advisory revenues for the third quarter of 2013 were $47.0 million compared to $72.7 million for the third quarter of 2012. We recorded an investment loss of $2.4 million for the third quarter of 2013 compared to an investment loss of $10.0 million in the third quarter of the prior year. The decrease in our third quarter revenues as compared to the same period in 2012 resulted from a decrease in advisory revenues of $25.7 million offset by a decline in investment losses of $7.6 million.

For the nine months ended September 30, 2013, total revenues were $210.8 million compared to $192.8 million over the same year to date period in 2012, which represented an increase of $18.0 million, or 9%. Advisory revenues for the nine months endedSeptember 30, 2013 were $211.5 million compared to $191.2 million over the same year to date period in 2012. Investment revenues for the nine months endedSeptember 30, 2013 were negative $0.7 million compared to a gain of $1.6 million for the same period in the prior year. The increase in our year to date revenues as compared to the same period in 2012 resulted from an increase in advisory revenues of $20.3 million, offset in part by a net decrease in investment revenues of $2.3 million.

Our third quarter2013 net income allocated to common stockholders of $1.8 million and diluted earnings per share of $0.06 compare to net income allocable to common stockholders of $8.6 million and diluted earnings per share of $0.28 in the third quarter of 2012. On a year to date basis, net income allocable to common stockholders of $30.9 million and diluted earnings per share of $1.03 for the nine months ended September 30, 2013 compare to net income allocated to common stockholders of $27.0 million and diluted earnings per share of $0.88 for the same nine month period in 2012.

Our quarterly revenues and net income can fluctuate materially depending on the number and size of completed transactions on which we advised, the size of investment gains (or losses), and other factors. Accordingly, the revenues and net income in any particular period may not be indicative of future results.

Revenues by Source

The following provides a breakdown of total revenues by source for the three and nine month periods ended September 30, 2013 and 2012, respectively:

	For the Three Months Ended
	September 30, 2013					September 30, 2012
	Amount			% of Total		Amount			% of Total
	(in millions, unaudited)
Advisory revenues	$	47.0		105	%	$	72.7		116	%
Investment revenues	(2.4		)	(5	)%	(10.0		)	(16	)%
Total revenues	$	44.6		100	%	$	62.7		100	%

	For the Nine Months Ended
	September 30, 2013					September 30, 2012
	Amount			% of Total		Amount		% of Total
	(in millions, unaudited)
Advisory revenues	$	211.5		100	%	$	191.2	99	%
Investment revenues	(0.7		)	—	%	1.6		1	%
Total revenues	$	210.8		100	%	$	192.8	100	%

Advisory Revenues

Advisory revenues primarily consist of financial advisory and transaction related fees earned in connection with advising clients in mergers, acquisitions, financings, restructurings, capital raisings or similar transactions.  We earned $47.0 million in advisory revenues in the third quarter of 2013 compared to $72.7 million in the third quarter of 2012, a decrease of 35%. The decrease in advisory revenues in the third quarter of 2013 as compared to the same period in 2012 resulted primarily from a decrease in transaction advisory fees due to fewer announced and completed assignments.

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For the nine months ended September 30, 2013, advisory revenues were $211.5 million compared to $191.2 million for the comparable period in 2012, an increase of 11%. This increase resulted principally from an increase in the size of completed assignments and associated fees, offset in part by a decrease in announcement and opinion fees and retainer fees. At the same time, for the first nine months of 2013 compared to the same period in the prior year, worldwide completed M&A volume decreased by 1%, the number of completed transactions decreased by 13% and the number of $1 billion or greater completed transactions decreased by 15%.¹ 

During each of the nine months ended September 30, 2013 and 2012, we earned $1 million or more from 48 clients. For the year to date period ended September 30, 2013, as compared to the same period in 2012, we generated a greater portion of our advisory revenues from M&A transaction activity compared to other sources of revenue with restructuring and financing advisory lower in the first nine months of 2013 compared to the same period in 2012 and fund placement activity comparable period to period.

Completed assignments in the third quarter of 2013 included:

• the representation of American Roads, LLC in connection with its pre-arranged Chapter 11 proceedings;

• the balance sheet restructuring of CPP Group plc;

• the sale of Dentsu Inc.'s retail data analytics subsidiary Aztec, to IRI;

• the merger of Det Norske Veritas of Norway with Germanischer Lloyd of Germany;

• the sale of Elders Limited's Futuris Automotive to Clearlake Capital;

• the representation of Schenck Process Holding GmbH on the refinancing of its existing senior and mezzanine syndicated facilities; and

• the sale by Suncorp Group Ltd  of a portfolio of corporate and property loans to Goldman Sachs Group Inc.

During the third quarter of 2013, our capital advisory group served as global placement agent on behalf of private equity and real estate funds for one final closing and five interim closings of limited partnership interests in such funds.

Investment Revenues

Investment revenues primarily consist of our investment gains and losses from our investments in Iridium and previously sponsored merchant banking funds.

(1) Global M&A completed volume and number of transactions for the nine months ended September 30, 2013 as compared to the nine months ended September 30, 2012. Source: Thompson Financial as of October 30, 2013. The number of transactions excludes transactions less than $100,000.

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The following table sets forth additional information relating to our investment revenues for the three and nine months ended September 30, 2013 and 2012:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2013			2012			2013			2012
	(in millions, unaudited)
Net realized and unrealized gains (losses) on investment in Iridium	$	(3.2	)	$	(10.8	)	$	1.3		$	(1.2	)
Net realized and unrealized gains (losses) on investments in merchant banking funds	0.4			0.1			(3.0		)	1.3
Deferred gain on sale of certain merchant banking assets	0.1			0.1			0.2			0.2
Interest income	0.3			0.6			0.8			1.3
Total investment revenues	$	(2.4	)	$	(10.0	)	$	(0.7	)	$	1.6

For the third quarter of 2013, we recorded an investment loss of $2.4 million compared to an investment loss of $10.0 million in the third quarter of 2012. The decrease in the investment loss of $7.6 million principally resulted from a smaller decline in the quoted market value of Iridium during the third quarter of 2013 as compared to 2012.

For the nine months ended September 30, 2013, we recorded an investment loss of $0.7 million compared to an investment gain of $1.6 million in the nine months ended September 30, 2012. The decrease in investment revenues of $2.3 million principally resulted from a year to date loss in our investments in merchant banking funds in 2013 as compared to a gain in 2012, offset in part, by a year to date gain in our investment in Iridium in 2013 as compared to a loss in 2012.

We recognize gains or losses from our investment in Iridium from marking to market our holdings at the end of each period to record unrealized gains or losses. To the extent we sell our holdings in Iridium for a price above or below our mark for the previously reported period, we recognize realized gains or losses on such sales during the period of sale. At September 30, 2013, we owned 1,595,629 shares of Iridium common stock, or approximately 2% of Iridium's fully diluted ownership. At September 30, 2012, we owned 5,939,016 shares of Iridium common stock, or approximately 8% on a fully diluted basis.

We recognize revenue on investments in merchant banking funds based on our allocable share of realized and unrealized gains (or losses) reported by such funds on a quarterly basis. Investments held by merchant banking funds are recorded at estimated fair value. Because of the inherent uncertainty of valuations as well as the discounts applied, the estimated fair value of investments in privately held companies may differ significantly from the values that would have been used had a ready market for the securities existed.

At September 30, 2013, we had principal investments of $22.3 million, consisting of our investments in Iridium of $11.0 million and in merchant banking funds of $11.3 million. As part of our plan to sell our entire interest in Iridium over time, during the third quarter of 2013, we sold 1,763,387 shares at an average price of $7.26 per share for proceeds of $12.8 million. During the first nine months of 2013, we sold 3,488,387 shares of Iridium at an average price of $7.04 per share for proceeds of $24.6 million.

In July 2013, we sold our investment in GCP III for $2.0 million, which represented the book value of our investment. In connection with that sale we also eliminated our last remaining commitment to invest in merchant banking funds.

Significant changes in the fair value of Iridium or the estimated fair value of our investment in merchant banking funds could have a material effect, positive or negative, on our revenues and thus our results of operations.

The investment gains or losses from our investment in Iridium and our investments in our previously sponsored merchant banking funds may fluctuate significantly over time due to factors beyond our control, such as performance of each company in our merchant banking portfolio, equity market valuations, and merger and acquisition opportunities. Revenues recognized from gains (or losses) recorded in any particular period are not necessarily indicative of revenues that may be realized and/or recognized in future periods.

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Operating Expenses

We classify operating expenses as employee compensation and benefits expense and non-compensation expenses.

Our total operating expenses for the third quarter of 2013 were $41.6 million, which compared to $48.8 million of total operating expenses for the third quarter of 2012. This represents a decrease in total operating expenses of $7.2 million, or 15%, and resulted from decreases in both our compensation and benefits expenses consistent with decreased revenues and our non-compensation expenses as described in more detail below. The pre-tax profit margin for the third quarter of 2013 was 7% compared to 22% for the third quarter of 2012.

For the nine months ended September 30, 2013, total operating expenses were $160.8 million compared to $150.4 million of total operating expenses for the same period in 2012. The increase in total operating expenses of $10.4 million, or 7%, related principally to higher compensation and benefits expenses offset by a decrease in non-compensation expenses, as described in more detail below. The pre-tax profit margin for the nine months ended September 30, 2013 was 24% compared to 22% for the same period in 2012.

The following table sets forth information relating to our operating expenses, which are reported net of reimbursements of certain expenses by our clients:

	For the Three Months Ended September 30, 2013				For the Nine Months Ended September 30,
	2013		2012		2013		2012
	(in millions, unaudited)
Employee compensation and benefits expense	$27.1		$33.3		$115.2		$102.9
% of revenues	61	%	53	%	55	%	53	%
Non-compensation expense	14.5		15.5		45.6		47.5
% of revenues	33	%	25	%	22	%	25	%
Total operating expense	41.6		48.8		160.8		150.4
% of revenues	93	%	78	%	76	%	78	%
Total income before tax	2.9		14.0		50.0		42.3
Pre-tax profit margin	7	%	22	%	24	%	22	%

Compensation and Benefits Expenses

Our employee compensation and benefits expenses in the third quarter of 2013 were $27.1 million, which reflected a 61% ratio of compensation to revenues. This amount compared to $33.3 million for the third quarter of 2012, which reflected a 53% ratio of compensation to revenues. The decrease of $6.2 million, or 19%, resulted principally from a reduction in the annual cash bonus accrual commensurate with the decline in revenues in the third quarter of 2013 compared to the same period in 2012. The increase in the ratio of compensation to revenues in the third quarter of 2013 as compared to the same period in 2012 resulted from the effect of lower compensation costs spread over significantly lower revenues.

For the nine months ended September 30, 2013, our employee compensation and benefits expenses were $115.2 million compared to $102.9 million for the same period in the prior year. The increase of $12.3 million, or 12%, resulted principally from the increase in revenues in the first nine months of 2013 as compared to the same period in the prior year. On a year to date basis, the ratio of compensation expense to revenues was 55% for the first nine months of 2013 compared to 53% for the same nine month period in 2012.

Our compensation expense is generally based upon revenues and can fluctuate materially in any particular period depending upon the changes in headcount, amount of revenues recognized, as well as other factors. Accordingly, the amount of compensation expense recognized in any particular period may not be indicative of compensation expense in a future period.

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Non-Compensation Expenses

Our non-compensation expenses include the costs for occupancy and equipment rental, communications, information services, professional fees, recruiting, travel and entertainment, insurance, depreciation and amortization, interest expense and other operating expenses. Reimbursed client expenses are netted against non-compensation expenses.

Our non-compensation expenses were $14.5 million in the third quarter of 2013 compared to $15.5 million in the third quarter of 2012, reflecting a decrease of $1.0 million. The decrease in non-compensation expenses principally resulted from the benefit of lower amortization of the Australian intangible assets, which were fully amortized in the first quarter of 2013, and lower other general operating costs offset by an increase in travel expenses associated with new business activities.

For the nine months ended September 30, 2013, our non-compensation expenses were $45.6 million compared to $47.5 million for the same period in 2012, representing a decrease of $1.9 million, or 4%. Similar to the third quarter results, the decrease in non-compensation expenses for the nine month period ended September 30, 2013 was principally attributable to the aforementioned benefit of the completion of the amortization period of the Australian intangible assets and lower other general operating costs offset by increased travel costs associated with new business activities.

Non-compensation expenses as a percentage of revenues for the three months ended September 30, 2013 were 33% compared to 25% for the same period in 2012. The increase in non-compensation expenses as a percentage of revenues resulted principally from the spreading of lower costs over significantly lower revenues earned during the third quarter of 2013 as compared to the same period in 2012.

Non-compensation expenses as a percentage of revenues for the nine months ended September 30, 2013 were 22% compared to 25% for the same period in the prior year. The decrease in non-compensation expenses as a percentage of revenues resulted from the spreading of lower costs over increased revenues in the first nine months of 2013 as compared to the same period in 2012.

Our non-compensation expenses as a percentage of revenues can vary as a result of a variety of factors including fluctuation in revenue amounts, changes in headcount, the amount of recruiting and business development activity, the amount of office space expansion, the amount of reimbursement of engagement-related expenses by clients, the amount of our short term borrowings, interest rate and currency movements and other factors. Accordingly, the non-compensation expenses as a percentage of revenues in any particular period may not be indicative of the non-compensation expenses as a percentage of revenues in future periods.

Provision for Income Taxes

During the third quarter of 2013, the provision for income taxes was $1.2 million, which reflected an effective tax rate of 39%. This compared to a provision for income taxes in the third quarter of 2012 of $5.4 million, which also reflected an effective tax rate of 39%. The decrease in the provision for income taxes in the third quarter of 2013 as compared to the same period in 2012 was attributable to lower pre-tax income.

For the nine months ended September 30, 2013, the provision for taxes was $19.1 million, which reflected an effective tax rate of 38%. This compared to a provision for taxes for the nine months ended September 30, 2012 of $15.3 million, at an effective tax rate of 36% for the period. The increase in the provision for income taxes in the nine months ended September 30, 2013 as compared to the same period in 2012 was due to both higher pre-tax income and a higher effective tax rate related to non-deductible capital losses from the sale of Iridium shares held by our European affiliate.

The effective tax rate can fluctuate as a result of variations in the relative amounts of advisory and investment income earned and the tax rate imposed in the tax jurisdictions in which we operate and invest. Accordingly, the effective tax rate in any particular period may not be indicative of the effective tax rate in future periods.

Liquidity and Capital Resources

Our liquidity position is monitored by our Management Committee, which generally meets monthly. The Management Committee monitors cash, other significant working capital assets and liabilities, debt, principal investment commitments and other matters relating to liquidity requirements. We evaluate our liquid cash operating position on a regular basis in light of current market conditions. As of September 30, 2013, we had cash and cash equivalents of $30.3 million, of which $21.5 million was held outside the U.S. We retain our cash in financial institutions with high credit ratings and/or invest in short-term investments which are expected to provide liquidity.

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We generate cash from our operating activities principally in the form of advisory fees and our investment activities in the form of proceeds from the sales and distributions of our investments. We use our cash primarily for recurring operating expenses and the payment of dividends and non-recurring disbursements such as the repurchase of shares of our common stock and the funding of leasehold improvements for the build out of office space. Our recurring monthly operating disbursements principally consist of base compensation expense, occupancy, travel and entertainment, and other operating expenses. Our recurring quarterly and annual disbursements consist of cash bonus payments, tax payments, dividend payments, and repurchases of our common stock from our employees in conjunction with the payment of tax liabilities incurred on vesting of restricted stock units. These amounts vary depending upon our profitability and other factors.

Because a portion of the compensation we pay to our employees is distributed in annual bonus awards (usually in February of each year), our net cash balance is typically at its lowest level during the first quarter of each year and generally accumulates from our operating activities throughout the remainder of the year. In general, we collect our accounts receivable within 60 days, except for fees generated through our private equity and real estate capital advisory engagements, which are typically paid in installments over a period of three years, and certain restructuring transactions, where collections may take longer due to court-ordered holdbacks. At September 30, 2013, we had long-term receivables related to private equity and real estate capital advisory engagements of $24.9 million.

Our current liabilities typically consist of accounts payable, which are generally paid monthly, accrued compensation, which includes accrued cash bonuses that are generally paid in the first quarter of the following year to the large majority of our employees, and current taxes payable. In February 2013, cash bonuses and accrued benefits of $15.2 million relating to 2012 compensation were paid to our employees. In addition, in 2013, we paid $15.7 million related to income taxes owed in the United States and Australia for the year ended December 31, 2012 and $11.3 million for estimated tax payments for the year ended December 31, 2013.

To provide for working capital needs and other general corporate purposes in the United States, we have a $45.0 million revolving bank loan facility which matures on April 30, 2014. Historically, we have been able to extend the maturity date of the revolving loan facility for a one year period shortly before maturity although our ability to do so in the future is not certain. The facility bears interest at the higher of the Prime Rate or 3.25%. Borrowings under the facility are secured by any cash distributed in respect of our investment in the U.S. based merchant banking funds and cash distributions from Greenhill & Co., LLC. At September 30, 2013, we had $36.4 million outstanding under the revolving bank loan facility. The revolving loan facility has a prohibition on the incurrence of additional indebtedness without the prior approval of the lenders and requires that we comply with certain financial and liquidity covenants on a quarterly basis. At September 30, 2013, we were compliant with all loan covenants and we expect to continue to be compliant with all loan covenants in future periods.

Historically, we have generated significant earnings outside the U.S. To support our corporate cash needs in the U.S. we may repatriate foreign earnings in excess of our local working capital requirements and other forecasted local needs. To the extent we repatriate foreign earnings from jurisdictions with a lower tax rate than the U.S. we may be subject to an incremental amount of U.S. tax on such earnings. However, we currently have excess foreign tax credits which may be available to offset any incremental U.S. tax amount. As a result, we would expect to incur a minimal amount, if any, of incremental U.S. tax from any such repatriations in the near future.

Since our exit from the merchant banking business, we have sought to realize value from our remaining principal investments, which consisted of investments in previously sponsored merchant banking funds and Iridium.

During 2011, we sold substantially all of our interests in GCP II and all of our interests in GSAVP to unaffiliated third parties and received proceeds of $49.4 million, of which $15.5 million was repaid in December 2012 upon exercise by the purchasers of a put option. In 2012, we continued the liquidation of our previously sponsored merchant banking funds with the sale of our entire interest in GCP Europe for proceeds of $27.2 million. In July 2013, we sold our entire investment in GCP III for proceeds of $2.0 million. As part of that sale, the buyers assumed our remaining commitment to GCP III and eliminated our last remaining commitment to investments in merchant banking funds. Also in July 2013, we sold one of the remaining capital interests in GCP II for a nominal amount to realize tax benefits.

We began the monetization of our investment in Iridium in October 2011, when we initiated a plan to sell all of our holdings in Iridium systematically over time. Since we initiated our plan to sell our interest in Iridium through September 30, 2013, we have sold 8,208,387 shares of Iridium, or approximately 84% of our holdings, at an average price of $7.41 per share for total proceeds of $60.8 million. During the first nine months of 2013, we sold 3,488,387 shares, which included 1,763,387 shares sold in the third quarter, for total proceeds during the first nine months of 2013 of $24.6 million at an average price of $7.04 per share. At September 30, 2013, we owned 1,595,629 shares of Iridium, which had a quoted market value of $11.0 million on that date, and represented approximately 2% of Iridium's fully diluted share. We expect to complete the liquidation of our remaining investment in Iridium in the fourth quarter of 2013 subject to market conditions.

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We used the net proceeds from the sale of our investments in merchant banking funds and Iridium principally to make open market share repurchases and to reduce borrowings outstanding on the revolving loan facility. We intend to continue to monetize our investments subject to market conditions and expect to use future net proceeds to fund share repurchases or to reduce borrowing on the revolving loan facility.

At September 30, 2013, our remaining investments in previously sponsored and other merchant banking funds were valued at $11.3 million. Because merchant banking funds typically invest in privately held companies, the ability of the merchant banking funds to sell or dispose of the securities they own depends on a number of factors beyond the control of the funds, including general economic and sector conditions, stock market conditions, commodity prices, and the availability of financing to potential buyers of such securities, among other issues. As a result, we consider our investments in the merchant banking funds illiquid for the short term. With the sale of our investment in GCP III, our remaining commitment to fund capital calls for merchant banking fund investments is $0.1 million.

In January 2013, our Board of Directors authorized the repurchase of up to $100.0 million of our common stock during 2013. For the nine months ended September 30, 2013, we repurchased 853,870 shares of our common stock in open market purchases and are deemed to have repurchased 214,303 shares of our common stock in connection with the cash settlement of tax liabilities incurred on the vestings of restricted stock units. In aggregate we repurchased 1,068,173 common shares and common stock equivalents at an average price of $51.30 per share, for a total purchase cost of $54.8 million.

Under the terms of our stock equity plan we generally repurchase from our employees that portion of restricted stock unit awards used to fund income tax withholding due at the time the restricted stock unit awards vest. Based upon the number of restricted stock unit grants outstanding at October 30, 2013, we expect to fund repurchases of our common stock from our employees in conjunction with the cash settlement of tax liabilities incurred on vesting of restricted stock units of approximately $67.7 million (as calculated based upon the closing share price as of October 30, 2013 of $51.69 per share and assuming a withholding tax rate of 38%) over the next five years, of which an additional $21.3 million will be payable in 2014, $15.2 million will be payable in 2015, $12.1 million will be payable in 2016 , $12.5 million will be payable in 2017, and $6.6 million will be payable in 2018. We will realize a corporate income tax benefit concurrently with the cash settlement payments.

Our acquisition of Caliburn was funded with the issuance of 1,099,874 shares of our common stock and 1,099,877 contingent convertible preferred shares. The contingent convertible preferred shares do not pay dividends and were issued in tranches of 659,926 shares and 439,951 shares, which convert to common shares promptly following the third and fifth anniversary of the closing of the acquisition, respectively, if certain revenue targets are achieved. The performance target for the first tranche was met prior to the third anniversary and 659,926 contingent convertible preferred shares were converted to common shares in April 2013. The second tranche of contingent convertible preferred shares is subject to a measurement period of revenues from April 1, 2013 to March 31, 2015. If the revenue target for the second tranche is achieved, the Performance Stock will be converted to common shares on April 1, 2015. If the revenue target for the second tranche is not achieved, the remaining contingent convertible preferred shares will be canceled.

While we believe that the cash generated from operations, proceeds from the sale of Iridium and funds available from the revolving bank loan facility will be sufficient to meet our expected operating needs, tax obligations, common dividends payments, share repurchases and build-out costs of new office space, we may adjust our variable expenses and other disbursements, if necessary, to meet our liquidity needs. There is no assurance that our current lender will continue to renew our revolving loan facility annually on comparable terms, and if it is not renewed that we would be able to obtain a new credit facility from a different lender. In that case, we could be required to promptly liquidate some of our remaining principal investments, issue additional securities, reduce operating costs or take a combination of these actions, in each case on terms which may not be favorable to us. In the event that we are not able to meet our liquidity needs, we may consider a range of financing alternatives to meet any such needs.

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Cash Flows

In the first nine months ending September 30, 2013, our cash and cash equivalents decreased by $20.0 million from December 31, 2012, including a decrease of $1.1 million from the effect of the translation of foreign currency amounts into U.S. dollars at the quarter-end foreign currency conversion rates. We generated $45.0 million from operating activities, including $76.1 million from net income after giving effect to the non-cash items and a net decrease in working capital of $31.1 million principally from the payment of annual bonuses and an increase in advisory fees receivable. We generated $26.5 million from investing activities, including proceeds from the sale of Iridium of $26.6 million and distributions from other merchant banking funds of $1.0 million, offset by the funding of a merchant banking capital call of $0.5 million and $0.6 million for computer equipment purchases. We used $90.3 million in financing activities, including $42.2 million for the payment of dividends, $42.5 million for open market repurchases of our common stock, $12.3 million for the repurchase of our common stock from employees in conjunction with the payment of tax liabilities in settlement of restricted stock units, $0.3 million for distributions to non-controlling interests and $0.3 million of tax costs related to delivery of restricted stock units at a vesting price lower than the grant price, offset in part by the funding of $7.3 million from net borrowings on our revolving loan facility.

In the first nine months ending September 30, 2012, our cash and cash equivalents decreased by $23.9 million from December 31, 2011, net of an increase of $0.3 million resulting from the effect of the translation of foreign currency amounts into U.S. dollars at the quarter-end foreign currency conversion rates. We generated $36.2 million from operating activities, including $60.5 million from net income after giving effect to the non-cash items and a net decrease in working capital of $24.3 million principally from the annual payment of bonuses. We generated $19.3 million from investing activities, primarily from proceeds from the sale of Iridium of $24.9 million and distributions from other merchant banking funds of $3.0 million, offset by $6.5 million used to fund capital calls for our merchant banking fund investments and $2.1 million for build out of office space and other capital needs. We used $79.8 million in financing activities, including $42.2 million for the payment of dividends, $32.5 million for open market repurchases of our common stock, $8.0 million for the repurchase of our common stock from employees in conjunction with the payment of tax liabilities in settlement of restricted stock units and $4.4 million of tax costs related to delivery of restricted stock units at a vesting price lower than the grant price, offset by net borrowings on our revolving loan facility of $7.3 million.

Off-Balance Sheet Arrangements

We do not invest in any off-balance sheet vehicles that provide financing, liquidity, market risk or credit risk support, or engage in any leasing or hedging activities that expose us to any liability that is not reflected in our condensed consolidated financial statements.

Market Risk

We limit our investments to (1) short-term cash investments, which we believe do not face any material interest rate risk, equity price risk or other market risk and (2) principal investments made in Iridium and merchant banking investments. We maintain our cash and cash equivalents with financial institutions with high credit ratings. Although these deposits are generally not insured, management believes that the Firm is not exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held.

We monitor the quality of our investments on a regular basis and may choose to diversify such investments to mitigate perceived market risk. Our cash and cash equivalents are denominated in U.S. dollars, Australian dollars, Canadian dollars, pound sterling, euros, Swedish krona, and yen, and we face modest foreign currency risk in our cash balances held in accounts outside the United States due to potential currency movements and the associated foreign currency translation accounting requirements. We may hedge our foreign currency exposure if we expect we will need to fund U.S. dollar obligations with foreign currency.

With regard to our investments in Iridium and the merchant banking funds, we face exposure to changes in the fair value of the companies in which we have directly or indirectly invested, which historically has been volatile. Significant changes in the public equity markets, and particularly the quoted market value of our investment in Iridium, because of the relative size of that investment, may have a material effect on our results of operations. Volatility in the general equity markets would impact our operations primarily because of changes in the fair value of our merchant banking or principal investments that are publicly traded securities. Volatility in the availability of credit would impact our operations primarily because of changes in the fair value of merchant banking or principal investments that rely upon a portion of leverage to operate. We have analyzed our potential exposure to general equity market risk by performing sensitivity analyses on those investments in publicly traded securities held by us. This analysis showed that if we assume that at September 30, 2013, the market prices of all public securities held by the Firm were 10% lower, the impact on our operations would be a decrease in revenues of $1.1 million.

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We manage the risks associated with the merchant banking investments by assessing information provided by the funds.

In addition, the reported amounts of our advisory revenues may be affected by movements in the rate of exchange between the Australian dollar, Canadian dollar, pound sterling, euro, and yen (in which collectively 39% of our revenues for the period ended September 30, 2013 were denominated) and the dollar, in which our financial statements are denominated. We do not currently hedge against movements in these exchange rates. We analyzed our potential exposure to a decline in exchange rates by performing a sensitivity analysis on our net income in those jurisdictions in which we generated a significant portion of our foreign earnings, which included the United Kingdom, Europe and Australia. During the nine month period ended September 30, 2013, as compared to the same period in 2012, the value of the U.S. dollar strengthened relative to the pound sterling and Australian dollar and weakened relative to the euro. In aggregate, there was not a significant impact on our revenues in the first nine months of 2013 as compared to the same period in 2012 as a result of movements in the foreign currency exchange rates. While our earnings are subject to volatility from foreign currency changes, we do not believe we face any material risk in this respect.

Critical Accounting Policies and Estimates

We believe that the following discussion addresses Greenhill’s most critical accounting policies, which are those that are most important to the presentation of our financial condition and results of operations and require management’s most difficult, subjective and complex judgments.

Basis of Financial Information

These condensed consolidated financial statements are prepared in conformity with GAAP in the United States, which require management to make estimates and assumptions regarding future events that affect the amounts reported in our financial statements and footnotes, including investment valuations, compensation accruals and other matters. Management believes that the estimates used in preparing its condensed consolidated financial statements are reasonable and prudent. Actual results could differ materially from those estimates. Certain reclassifications have been made to prior year information to conform to current year presentation.

The condensed consolidated financial statements include all consolidated accounts of Greenhill & Co., Inc. and all other entities in which we have a controlling interest after eliminations of all significant inter-company accounts and transactions. In accordance with the accounting pronouncements on the consolidation of variable interest entities, we consolidate the general partners of the merchant banking funds in which it has a majority of the economic interest. The general partners account for their investments in the merchant banking funds under the equity method of accounting. As such, the general partners record their proportionate shares of income (loss) from the underlying merchant banking funds. As the merchant banking funds follow investment company accounting, and generally record all their assets and liabilities at fair value, the general partners’ investment in merchant banking funds represents an estimation of fair value. We do not consolidate the merchant banking funds since the Firm through its general partner and limited partner interests, does not have a majority of the economic interest in such funds and the limited partners have certain rights to remove the general partner by a simple majority vote of unaffiliated third-party investors.

We believe that the following discussion addresses our most critical accounting policies, which are those that are most important to the presentation of our financial condition and results of operations and require management's most difficult, subjective and complex judgments. For further discussion of these and other significant accounting policies, see “Note 2 - Summary of Significant Accounting Policies” in our condensed consolidated financial statements, and our 2012 Annual Report on Form 10-K.

Revenue Recognition

Advisory Revenues

The Firm's accounting policy is to recognize revenue when (i) there is persuasive evidence of an arrangement with a client, (ii) the agreed-upon services have been completed and delivered to the client or the transaction or events noted in the engagement letter are determined to be substantially complete, (iii) fees are fixed and determinable, and (iv) collection is reasonably assured.

The Firm recognizes advisory fee revenues for mergers and acquisitions or financing advisory and restructuring engagements when the services related to the underlying transactions are completed in accordance with the terms of the engagement letter and all other requirements for revenue recognition are satisfied.

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The Firm recognizes private equity and real estate capital advisory fees at the time of the client's acceptance of capital or capital commitments to a fund in accordance with the terms of the engagement letter. Generally, fee revenue is determined based upon a fixed percentage of capital committed to the fund. For multiple closings, revenue is recognized at each interim closing based on the amount of capital committed at each closing at the fixed fee percentage. At the final closing, revenue is recognized at the fixed percentage for the amount of capital committed since the last interim closing.

While the majority of the Firm's fee revenue is earned at the conclusion of a transaction or closing of a fund, on-going retainer fees, substantially all of which relate to non-success based strategic advisory and financing advisory and restructuring assignments, are also earned and recognized as advisory fee revenue over the period in which the related service is rendered.

The Firm's clients reimburse certain expenses we incur in the conduct of advisory engagements. Expenses are reported net of such client reimbursements.

Investment Revenues

Investment revenues consist of (i) gains (or losses) on the Firm's investments in certain merchant banking funds, Iridium and other investments, (ii) profit overrides from certain merchant banking funds, if any, and (iii) interest income.

We recognize revenue on our investments in merchant banking funds based on our allocable share of realized and unrealized gains (or losses) reported by such funds. We recognize revenue on its other investments, including Iridium, which consider our influence or control of the investee, based on gains and losses on investment positions held, which arise from sales or changes in the fair value of investments. The amount of gains or losses are not predictable and can cause periodic fluctuations in net income and therefore subject us to market and credit risk.

If certain financial returns are achieved over the life of a merchant banking fund, we may recognize merchant banking profit overrides at the time that certain financial returns are achieved. Profit overrides are generally calculated as a percentage of the profits over a specified threshold earned by each fund on investments managed on behalf of unaffiliated investors except the Firm. We may be required to repay a portion of the overrides it realized in the event a minimum performance level is not achieved by the fund as a whole (we refer to these potential repayments as “clawbacks”).

Cash and Cash Equivalents

We consider all highly liquid investments with a maturity date of three months or less, when purchased, to be cash equivalents. Cash equivalents primarily consist of money market funds and overnight deposits.

Advisory Fees Receivables

Receivables are stated net of an allowance for doubtful accounts. The estimate for the allowance for doubtful accounts is derived by the Firm by utilizing past client transaction history and an assessment of the client’s creditworthiness.

Included in the advisory fees receivable balance are long term receivables related to private equity and real estate capital advisory engagements, which are generally paid in installments over a period of three years. Included as a component of investment revenues on the condensed consolidated statements of income is interest income related to capital advisory engagements.

Credit risk related to advisory fees receivable is disbursed across a large number of clients located in various geographic areas. We control credit risk through credit approvals and monitoring procedures but do not require collateral to support accounts receivable.

Investments

Our investments in the merchant banking funds are recorded under the equity method of accounting based upon our proportionate share of the fair value of the underlying merchant banking fund’s net assets. Our other investments, which consider our influence or control of the investee, are recorded at either estimated fair value or under the equity method of accounting based, in part, upon our proportionate share of the investee’s net assets.

Goodwill

Goodwill is the cost in excess of the fair value of identifiable net assets at acquisition date. We test goodwill for impairment at least annually. An impairment loss is triggered if the estimated fair value of an operating unit is less than estimated net book value. Such loss is calculated as the difference between the estimated fair value of goodwill and its carrying value.

30

Goodwill is translated at the rate of exchange prevailing at the end of the periods presented in accordance with the accounting guidance for foreign currency translation. Any translation gain or loss is included in the foreign currency translation adjustment included as a component of other comprehensive income in the condensed consolidated statements of changes in equity.

Restricted Stock Units

We account for its share-based compensation payments under which the fair value of restricted stock units granted to employees with future service requirements is recorded as compensation expense and generally amortized over a five-year service period following the date of grant. Compensation expense is determined based upon the fair market value of our common stock at the date of grant. As we expense the awards, the restricted stock units recognized are recorded within equity. The restricted stock units are reclassed into common stock and additional paid-in capital upon vesting. We record dividend equivalent payments on outstanding restricted stock units as a dividend payment and a charge to equity.

Earnings per Share

We calculate basic earnings per share (“EPS”) by dividing net income allocated to common stockholders by the weighted average number of shares outstanding for the period. Diluted EPS includes the determinants of basic EPS plus the dilutive effect of the common stock deliverable pursuant to restricted stock units for which future service is required as a condition to the delivery of the underlying common stock.

Under the treasury method, the number of shares issuable upon the vesting of restricted stock units included in the calculation of diluted earnings per share is the excess, if any, of the number of shares expected to be issued, less the number of shares that could be purchased by us with the proceeds to be received upon settlement at the average market closing price during the reporting period. The denominator for basic EPS includes the number of shares deemed issuable due to the vesting of restricted stock units for accounting purposes.

Provision for Taxes

We account for taxes in accordance with the guidance for income taxes which requires the recognition of tax benefits or expenses on the temporary differences between the financial reporting and tax bases of its assets and liabilities.

We follow the guidance for income taxes in recognizing, measuring, presenting and disclosing in its financial statements uncertain tax positions taken or expected to be taken on its income tax returns. Income tax expense is based on pre-tax accounting income, including adjustments made for the recognition or derecognition related to uncertain tax positions. The recognition or derecognition of income tax expense related to uncertain tax positions is determined under the guidance.

Deferred tax assets and liabilities are recognized for the future tax attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in earnings in the period of change. We apply the “more-likely-than-not criteria” when determining tax benefits.

Financial Instruments and Fair Value

We account for financial instruments measured at fair value in accordance with accounting guidance for fair value measurements and disclosures which establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under the pronouncement are described below:

Basis of Fair Value Measurement

Level 1 — Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2 — Quoted prices in markets that are not active or financial instruments for which all significant inputs are observable, either directly or indirectly; and

Level 3 — Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable.

31

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. In determining the appropriate levels, we perform a detailed analysis of the assets and liabilities that are subject to these disclosures. At each reporting period, all assets and liabilities for which the fair value measurement is based on significant unobservable inputs or instruments which trade infrequently and therefore have little or no price transparency are classified as Level 3. Transfers between levels are recognized as of the end of the period in which they occur.

Item 3.  Quantitative and Qualitative Disclosures About Market Risk

Quantitative and qualitative disclosures about market risk are set forth above in “Item 2 — Management’s Discussion and Analysis of Financial Condition and Results of Operations — Market Risk”.

Item 4.  Controls and Procedures

Under the supervision and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, we conducted an evaluation of the effectiveness of the Firm's disclosure controls and procedures (as defined in Rule 13a-15(e) of the Securities Exchange Act of 1934, as amended (the “Exchange Act”)). Based upon this evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of the end of the period covered by this report.

No change in our internal control over financial reporting (as defined in Rule 13a-15(f) and 15d-15(f) of the Exchange Act) occurred during the period covered by this report that has materially affected, or is reasonably likely to materially affect, our internal control over financial reporting.

PART II -- Other Information

Item 1.  Legal Proceedings

The Firm is from time to time involved in legal proceedings incidental to the ordinary course of its business. We do not believe any such proceedings will have a material adverse effect on our results of operations.

Item 1A.  Risk Factors

There have been no material changes in our risk factors from those disclosed in our 2012 Annual Report on Form 10-K.

Item 2. Unregistered Sales of Equity Securities and Use of Proceeds

Issuer Purchases of Equity Securities in the Third Quarter of 2013:

Period	Total Number of Shares Repurchased (1)	Average Price Paid Per  Share		Total Number of Shares Purchased  as Part of Publicly Announced Plans or Programs	Approximate Dollar Value of Shares that May Yet Be Purchased under the Plans or Programs (2)
July 1 - July 31	152,503	$	49.22	—	$	57,465,882
August 1 - August 31				—	57,465,882
September 1 - September 30		—		—	57,465,882
Total	152,503			—	$	57,465,882

_____________________________________________

(1) Excludes 33,636 shares we are deemed to have repurchased at $49.30 per share in the third quarter from employees in conjunction with the payment of tax liabilities in respect of stock delivered to employees in settlement of restricted stock units. For the nine months ended September 30, 2013, excludes 214,303 shares the Firm is deemed to have repurchased at an average price of $57.22 per share from employees in conjunction with tax liabilities in respect of stock delivered to employees in settlement of restricted stock units.

(2) The Board of Directors, effective on January 23, 2013, authorized the repurchase of up to $100,000,000 of our common stock during 2013.

32

Item 3.  Defaults Upon Senior Securities

None.

Item 4.  Mine Safety Disclosures

Not applicable.

Item 5.  Other Information

None.

33

Item 6. Exhibits

EXHIBIT INDEX

Exhibit Number	Description
10.1	Modification Agreement, dated as of September 27, 2013, between First Republic Bank and Greenhill & Co., Inc.
31.1	Certification of Chief Executive Officer Pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	Certification of Chief Financial Officer Pursuant to Rule 13a-14(a) or 15d-14(a) of the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1*	Certification of Chief Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2*	Certification of Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101*	Interactive data files pursuant to Rule 405 of Regulation S-T.

* This information is furnished and not filed herewith for purposes of Sections 11 and 12 of the Securities Act of 1933, as amended, and Section 18 of the Securities Exchange Act of 1934.

E-1

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

Dated: October 31, 2013

GREENHILL & CO., INC.
By:	/s/ SCOTT L. BOK
	Scott L. Bok
	Chief Executive Officer
By:	/s/ CHRISTOPHER T. GRUBB
	Christopher T. Grubb
	Chief Financial Officer

II-1

EX-10.1

EX-31.1

EXHIBIT 31.1

I, Scott L. Bok, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Greenhill & Co., Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

		/s/ Scott L. Bok
		Scott L. Bok
		Chief Executive Officer
Date:	October 31, 2013

EX-31.2

EXHIBIT 31.2

I, Christopher T. Grubb certify that:

1. I have reviewed this quarterly report on Form 10-Q of Greenhill & Co., Inc.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

3. Based on my knowledge, the financial statements, and other financial information included in this report, fairly present in all material respects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this report;

4. The registrant's other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and 15d-15(f)) for the registrant and have:

a) Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision, to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others within those entities, particularly during the period in which this report is being prepared;

b) Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles;

c) Evaluated the effectiveness of the registrant's disclosure controls and procedures and presented in this report our conclusions about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by this quarterly report based on such evaluation; and

d) Disclosed in this report any change in the registrant's internal control over financial reporting that occurred during the registrant's most recent fiscal quarter (the registrant's fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likely to materially affect, the registrant's internal control over financial reporting; and

5. The registrant's other certifying officer and I have disclosed, based on our most recent evaluation of internal control over financial reporting, to the registrant's auditors and the audit committee of registrant's board of directors (or persons performing the equivalent functions):

a) All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which are reasonably likely to adversely affect the registrant's ability to record, process, summarize and report financial information; and

b) Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant's internal control over financial reporting.

		/s/ Christopher T. Grubb
		Christopher T. Grubb
		Chief Financial Officer
Date:	October 31, 2013

EX-32.1

EXHIBIT 32.1

October 31, 2013

Securities and Exchange Commission

100 F Street, N. E.

Washington, DC 20549

CERTIFICATION OF CHIEF EXECUTIVE OFFICER PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002, PURSUANT TO SECTION 1350 OF CHAPTER 63 OF TITLE 18 OF THE UNITED STATES CODE

I, Scott L. Bok, Chief Executive Officer of Greenhill & Co., Inc. (the “Company”), certify that, to the best of my knowledge:

(1) The report of the Company on Form 10-Q for the quarterly period ending September 30, 2013 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods presented in the Report.

/s/ Scott L. Bok

Scott L. Bok

Chief Executive Officer

A signed original of this written statement required by Section 906 has been provided to Greenhill & Co., Inc. and will be retained by Greenhill & Co., Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

EX-32.2

EXHIBIT 32.2

October 31, 2013

Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

CERTIFICATION OF CHIEF FINANCIAL OFFICER PURSUANT TO SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002, PURSUANT TO SECTION 1350 OF CHAPTER 63 OF TITLE 18 OF THE UNITED STATES CODE

I, Christopher T. Grubb, Chief Financial Officer of Greenhill & Co., Inc. (the “Company”), certify that, to the best of my knowledge:

(1) The report of the Company on Form 10-Q for the quarterly period ending September 30, 2013 (the “Report”) fully complies with the requirements of Section 13(a) or Section 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company as of the dates and for the periods presented in the Report.

/s/ Christopher T. Grubb

Christopher T. Grubb

Chief Financial Officer

A signed original of this written statement required by Section 906 has been provided to Greenhill & Co., Inc. and will be retained by Greenhill & Co., Inc. and furnished to the Securities and Exchange Commission or its staff upon request.

XML

Regulatory Requirements

9 Months Ended

Sep. 30, 2013

Regulatory Capital Requirements [Abstract]

Regulatory Requirements

Regulatory Requirements

Certain subsidiaries of the Company are subject to various regulatory requirements in the United States, United Kingdom, Australia and certain other jurisdictions, which specify, among other requirements, minimum net capital requirements for registered broker-dealers.

G&Co is subject to the SEC’s Uniform Net Capital requirements under Rule 15c3-1 (the “Rule”), which specifies, among other requirements, minimum net capital requirements for registered broker-dealers. The Rule requires G&Co to maintain a minimum net capital of the greater of $5,000 or 1/15 of aggregate indebtedness, as defined in the Rule. As of September 30, 2013, G&Co’s net capital was $1.4 million, which exceeded its requirement by $1.1 million. G&Co’s aggregate indebtedness to net capital ratio was 2.72 to 1 at September 30, 2013. Certain distributions and other capital withdrawals of G&Co are subject to certain notifications and restrictive provisions of the Rule.

GCI and GCE are subject to capital requirements of the FCA. Greenhill Australia is subject to capital requirements of the ASIC. We are also subject to certain capital regulatory requirements in other jurisdictions. As of September 30, 2013, GCI, GCE, Greenhill Australia, and our other regulated operations were in compliance with local capital adequacy requirements.

XML

Consolidated Statements of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Revenues
Advisory revenues	$ 46,983	$ 72,757	$ 211,496	$ 191,160
Investment revenues	(2,440)	(10,010)	(672)	1,594
Total Revenues	44,543	62,747	210,824	192,754
Expenses
Employee compensation and benefits	27,073	33,290	115,202	102,932
Occupancy and equipment rental	4,672	4,627	13,322	13,370
Depreciation and amortization	861	1,775	3,612	5,463
Information services	2,042	2,103	6,020	6,192
Professional fees	1,297	1,304	4,050	4,038
Travel related expenses	2,879	2,270	9,360	8,359
Interest expense	241	242	769	750
Other operating expenses	2,529	3,158	8,453	9,337
Total expenses	41,594	48,769	160,788	150,441
Income before taxes	2,949	13,978	50,036	42,313
Provision for taxes	1,152	5,389	19,134	15,348
Consolidated net income	1,797	8,589	30,902	26,965
Less: Net income allocated to noncontrolling interests	0	0	0	0
Net income allocated to common stockholders	$ 1,797	$ 8,589	$ 30,902	$ 26,965
Average shares outstanding:
Basic (shares)	29,792,997	30,252,342	30,094,986	30,611,270
Diluted (shares)	29,805,553	30,260,808	30,122,352	30,618,837
Earnings per share:
Basic (usd per share)	$ 0.06	$ 0.28	$ 1.03	$ 0.88
Diluted (usd per share)	$ 0.06	$ 0.28	$ 1.03	$ 0.88
Dividends declared and paid per share (usd per share)	$ 0.45	$ 0.45	$ 1.35	$ 1.35

XML

Summary of Significant Accounting Policies

9 Months Ended

Sep. 30, 2013

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Summary of Significant Accounting Policies

Basis of Financial Information

These condensed consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States (U.S. GAAP), which require management to make estimates and assumptions regarding future events that affect the amounts reported in our financial statements and these footnotes, including investment valuations, compensation accruals and other matters. Management believes that the estimates used in preparing its condensed consolidated financial statements are reasonable and prudent. Actual results could differ materially from those estimates. Certain reclassifications have been made to prior year information to conform to current year presentation.

The condensed consolidated financial statements of the Company include all consolidated accounts of Greenhill & Co., Inc. and all other entities in which the Company has a controlling interest after eliminations of all significant inter-company accounts and transactions. In accordance with the accounting pronouncements related to consolidation of variable interest entities, the Company consolidates the general partners of certain merchant banking funds in which it has a majority of the economic interest and control. The general partners account for their investments in these merchant banking funds under the equity method of accounting. As such, the general partners record their proportionate shares of income (loss) from the underlying merchant banking funds. As these merchant banking funds follow investment company accounting, and generally record all their assets and liabilities at fair value, the general partners’ investment in these merchant banking funds represents an estimation of fair value. The Company does not consolidate the merchant banking funds since the Company, through its general partner and limited partner interests, does not have a majority of the economic interest in such funds and the limited partners have certain rights to remove the general partner by a simple majority vote of unaffiliated third-party investors.

These condensed consolidated financial statements are unaudited and should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2012 included in the Company's Annual Report on Form 10-K filed with the SEC. The condensed consolidated financial information as of December 31, 2012 has been derived from audited consolidated financial statements not included herein. The results of operations for interim periods are not necessarily indicative of results for the entire year.

Revenue Recognition

Advisory Revenues

The Company's accounting policy is to recognize revenue when (i) there is persuasive evidence of an arrangement with a client, (ii) the agreed-upon services have been completed and delivered to the client or the transaction or events noted in the engagement letter are determined to be substantially complete, (iii) fees are fixed and determinable, and (iv) collection is reasonably assured.

The Company recognizes advisory fee revenues for mergers and acquisitions or financing advisory and restructuring engagements when the services related to the underlying transactions are completed in accordance with the terms of the engagement letter and all other requirements for revenue recognition are satisfied.

The Company recognizes private equity and real estate capital advisory fees at the time of the client's acceptance of capital or capital commitments to a fund in accordance with the terms of the engagement letter. Generally, fee revenue is determined based upon a fixed percentage of capital committed to the fund. For multiple closings, revenue is recognized at each interim closing based on the amount of capital committed at each closing at the fixed fee percentage. At the final closing, revenue is recognized at the fixed percentage for the amount of capital committed since the last interim closing.

While the majority of the Company's fee revenue is earned at the conclusion of a transaction or closing of a fund, on-going retainer fees, substantially all of which relate to non-success based strategic advisory and financing advisory and restructuring assignments, are also earned and recognized as advisory fee revenue over the period in which the related service is rendered.

The Company’s clients reimburse certain expenses incurred by the Company in the conduct of advisory engagements. Expenses are reported net of such client reimbursements. Client reimbursements totaled $1.3 million and $1.6 million for the three months ended September 30, 2013 and 2012, respectively and $4.8 million and $5.4 million for the nine months ended September 30, 2013 and 2012, respectively.

Investment Revenues

Investment revenues consist of (i) gains (or losses) on the Company's investments in certain merchant banking funds, Iridium and other investments, (ii) profit overrides from certain merchant banking funds, if any, and (iii) interest income.

The Company recognizes revenue on its investments in merchant banking funds based on its allocable share of realized and unrealized gains (or losses) reported by such funds. The Company recognizes revenue on its other investments, including Iridium, which considers the Company's influence or control of the investee, based on gains and losses on investment positions held, which arise from sales or changes in the fair value of investments. The amount of gains or losses are not predictable and can cause periodic fluctuations in net income and therefore subject the Company to market and credit risk.

If certain financial returns are achieved over the life of a merchant banking fund, the Company may recognize merchant banking profit overrides at the time that certain financial returns are achieved. Profit overrides are generally calculated as a percentage of the profits over a specified threshold earned by each fund on investments managed on behalf of unaffiliated investors except the Company. The Company may be required to repay a portion of the overrides it realized in the event a minimum performance level is not achieved by the fund as a whole (we refer to these potential repayments as “clawbacks”). As of September 30, 2013, the Company believes it is more likely than not that the amount of profit overrides recognized as revenue in prior periods, which relates solely to its interest in GCP I, will be realized and accordingly, the Company has not reserved for any clawback obligations under applicable fund agreements.

Cash and Cash Equivalents

The Company’s cash and cash equivalents consist of (i) cash held on deposit with financial institutions, (ii) cash equivalents and (iii) restricted cash.

At September 30, 2013 and December 31, 2012, the Company had $30.3 million and $50.3 million of cash and cash equivalents. The Company considers all highly liquid investments with a maturity date of three months or less, when purchased, to be cash equivalents. Cash equivalents primarily consist of money market funds and overnight deposits. At September 30, 2013 and December 31, 2012, the carrying value of the Company’s cash equivalents amounted to $6.8 million and $4.5 million, respectively, which approximated fair value, and are included in total cash and cash equivalents.

Also included in the total cash and cash equivalents balance at September 30, 2013 and December 31, 2012 was restricted cash of $5.2 million and $7.1 million, respectively (including $0.9 million and $2.6 million restricted for the payout of Greenhill Australia's deferred compensation plan, respectively).

The Company maintains its cash and cash equivalents with financial institutions with high credit ratings. Management believes that the Company is not exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held.

Advisory Fees Receivables

Receivables are stated net of an allowance for doubtful accounts. The estimate for the allowance for doubtful accounts is derived by the Company by utilizing past client transaction history and an assessment of the client’s creditworthiness. The Company did not record a charge for bad debt expense for either of the three or nine month periods ended September 30, 2013 or 2012.

Included in the advisory fees receivable balance at September 30, 2013 and December 31, 2012 were $24.9 million and $28.1 million, respectively, of long term receivables related to private equity and real estate capital advisory engagements, which are generally paid in installments over a period of three years. Included as a component of investment revenues on the condensed consolidated statements of income is interest income related to capital advisory engagements of $0.3 million and $0.5 million for the three month periods ended September 30, 2013 and 2012, respectively, and $0.6 million and $0.9 million for the nine month periods ended September 30, 2013 and 2012, respectively.

Credit risk related to advisory fees receivable is disbursed across a large number of clients located in various geographic areas. The Company controls credit risk through credit approvals and monitoring procedures but does not require collateral to support accounts receivable.

Investments

The Company's investment in Iridium is valued using its quoted market price. The Company's investments in merchant banking funds are recorded under the equity method of accounting based upon the Company's proportionate share of the estimated fair value of the underlying merchant banking fund's net assets. The value of merchant banking fund investments in privately held companies is determined by the general partner of the fund after giving consideration to the cost of the security, the pricing of other sales of securities by the portfolio company, the price of securities of other companies comparable to the portfolio company, purchase multiples paid in other comparable third-party transactions, the original purchase price multiple, market conditions, liquidity, operating results and other qualitative and quantitative factors. Discounts may be applied to the funds' privately held investments to reflect the lack of liquidity and other transfer restrictions. Because of the inherent uncertainty of valuations as well as the discounts applied, the estimated fair values of investments in privately held companies may differ significantly from the values that would have been used had a ready market for the securities existed. The value of merchant banking fund investments in publicly traded securities is determined using quoted market prices discounted for any legal or contractual restrictions on sale. The values at which the Company's investments are carried on its condensed consolidated statements of financial condition are adjusted to estimated fair value at the end of each quarter and the volatility in general economic conditions, stock markets and commodity prices may result in significant changes in the estimated fair value of the investments from period to period.

Goodwill

Goodwill is the cost of acquired companies in excess of the fair value of identifiable net assets at acquisition date. The Company tests its goodwill for impairment at least annually. An impairment loss is triggered if the estimated fair value of an operating unit is less than estimated net book value. Such loss is calculated as the difference between the estimated fair value of goodwill and its carrying value.

Goodwill is translated at the rate of exchange prevailing at the end of the periods presented in accordance with the accounting guidance for foreign currency translation. Any translation gain or loss is included in the foreign currency translation adjustment, which is included as a component of other comprehensive income in the condensed consolidated statements of changes in equity. At September 30, 2013, goodwill decreased by $15.8 million from the beginning of the year as a result of the foreign currency translation adjustment.

Restricted Stock Units

The Company accounts for its share-based compensation payments under which the fair value of restricted stock units granted to employees with future service requirements is recorded as compensation expense and the units are generally amortized over a three to five year service period following the date of grant. Compensation expense is determined based upon the fair market value of the Company’s common stock at the date of grant. As the Company expenses the awards, the restricted stock units recognized are recorded within equity. The restricted stock units are reclassified into common stock and additional paid-in capital upon vesting. The Company records as treasury stock the repurchase of stock delivered to its employees in settlement of tax liabilities incurred upon the vesting of restricted stock units. The Company records dividend equivalent payments on outstanding restricted stock units as a dividend payment and a charge to equity.

Earnings per Share

The Company calculates basic earnings per share (“EPS”) by dividing net income allocated to common stockholders by the weighted average number of shares outstanding for the period. The denominator for basic EPS includes the weighted average number of shares deemed issuable due to the vesting of restricted stock units for accounting purposes and the contingently issuable convertible preferred shares deemed to meet the performance contingency.

Diluted EPS includes the determinants of basic EPS plus the dilutive effect of the common stock deliverable pursuant to restricted stock units for which future service is required as a condition to the delivery of the underlying common stock. Under the treasury method, the number of shares issuable upon the vesting of restricted stock units included in the calculation of diluted EPS is the excess, if any, of the number of shares expected to be issued, less the number of shares that could be purchased by the Company with the proceeds to be received upon settlement at the average market closing price during the reporting period.

Provision for Taxes

The Company accounts for taxes in accordance with the accounting guidance for income taxes which requires the recognition of tax benefits or expenses on the temporary differences between the financial reporting and tax bases of its assets and liabilities.

The Company follows the guidance for income taxes in recognizing, measuring, presenting and disclosing in its financial statements uncertain tax positions taken or expected to be taken on its income tax returns. Income tax expense is based on pre-tax accounting income, including adjustments made for the recognition or derecognition related to uncertain tax positions. The recognition or derecognition of income tax expense related to uncertain tax positions is determined under the guidance.

Deferred tax assets and liabilities are recognized for the future tax attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in earnings in the period of change. Management applies the “more-likely-than-not criteria” when determining tax benefits.

Foreign Currency Translation

Assets and liabilities denominated in foreign currencies have been translated at rates of exchange prevailing at the end of the periods presented in accordance with the accounting guidance for foreign currency translation. Income and expenses transacted in foreign currency have been translated at average monthly exchange rates during the period. Translation gains and losses are included in the foreign currency translation adjustment, which is included as a component of other comprehensive income in the condensed consolidated statements of changes in equity. Foreign currency transaction gains and losses are included in the condensed consolidated statements of income.

Financial Instruments and Fair Value

The Company accounts for financial instruments measured at fair value in accordance with accounting guidance for fair value measurements and disclosures which establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under the pronouncement are described below:

Basis of Fair Value Measurement

Level 1 – Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2 – Quoted prices in markets that are not active or financial instruments for which all significant inputs are observable, either directly or indirectly; and

Level 3 – Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. In determining the appropriate levels, the Company performs an analysis of the assets and liabilities that are subject to these disclosures. At each reporting period, all assets and liabilities for which the fair value measurement is based on significant unobservable inputs or instruments which trade infrequently and therefore have little or no price transparency are classified as Level 3. Transfers between levels are recognized as of the end of the period in which they occur.

Fair Value of Other Financial Instruments

The Company believes that the carrying values of all other financial instruments presented in the condensed consolidated statements of financial condition approximate their fair value generally due to their short-term nature and generally negligible credit risk. These fair value measurements would be categorized as Level 2 within the fair value hierarchy.

Noncontrolling Interests

The portion of the consolidated interests in the general partners of certain of the merchant banking funds not held by the Company is presented as noncontrolling interest, included as a component of equity in the condensed consolidated statements of financial condition. Additionally, the condensed consolidated statements of income separately present income allocated to both noncontrolling interests and common stockholders.

Property and Equipment

Property and equipment is stated at cost less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the life of the assets. Amortization of leasehold improvements is computed using the straight-line method over the lesser of the life of the asset or the remaining term of the lease. Estimated useful lives of the Company’s fixed assets are generally as follows:

Aircraft – 7 years

Equipment – 5 years

Furniture and fixtures – 7 years

Leasehold improvements – the lesser of 10 years or the remaining lease term

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Organization- Business Information (Details)	9 Months Ended
	Sep. 30, 2013 sources Segment
Segment Reporting [Abstract]
Number of reportable segments (segments)	1
Number of principal sources of revenue (source of revenue)	2

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Business Information

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

Business Information

Business Information

The Company's activities as an investment banking firm constitute one business segment, with two principal sources of revenue:

•     Advisory, which includes engagements relating to mergers and acquisitions, financing advisory and restructuring, and private equity and real estate capital advisory services; and

• Investment, which includes the Company's principal investments in merchant banking funds, Iridium and other investments and interest.

The following provides a breakdown of our revenues by source for the three and nine month periods ended September 30, 2013 and 2012, respectively:

	For the Three Months Ended
	September 30, 2013					September 30, 2012
	Amount		% of Total			Amount		% of Total
	(in millions, unaudited)
Advisory revenues	$47.0			105	%	$72.7			116	%
Investment revenues	(2.4	)		(5	)%	(10.0	)		(16	)%
Total revenues	$44.6			100	%	$62.7			100	%

	For the Nine Months Ended
	September 30, 2013					September 30, 2012
	Amount		% of Total			Amount	% of Total
	(in millions, unaudited)
Advisory revenues	$211.5			100	%	$191.2		99	%
Investment revenues	(0.7	)		—	%	1.6		1	%
Total revenues	$210.8			100	%	$192.8		100	%

In reporting to management, the Company distinguishes the sources of its revenues between advisory and investment revenues. However, management does not evaluate other financial data or operating results such as operating expenses, profit and loss or assets by its advisory and investment activities.

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Subsequent Events - Additional Information (Detail) (USD $)	1 Months Ended	0 Months Ended
	Sep. 30, 2013	Oct. 16, 2013 Dividend Declared
Subsequent Event [Line Items]
Subsequent event description		The Board of Directors of the Company declared a quarterly dividend
Dividends declared per common share (in USD per share)	$ 0.45	$ 0.45
Dividend payable date		Dec. 18, 2013
Dividend record date		Dec. 04, 2013

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Investments - Carrying Value of Investments in Merchant Banking Funds (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Jul. 31, 2013	Dec. 31, 2012
Investments in and Advances to Affiliates [Line Items]
Investments in merchant banking funds	$ 11,285		$ 16,772
GCP I [Member]
Investments in and Advances to Affiliates [Line Items]
Investments in merchant banking funds	1,732		2,247
GCP II [Member]
Investments in and Advances to Affiliates [Line Items]
Investments in merchant banking funds	7,627		11,173
GCP III [Member]
Investments in and Advances to Affiliates [Line Items]
Investments in merchant banking funds	0	2,000	1,367
Other Merchant Banking Funds
Investments in and Advances to Affiliates [Line Items]
Investments in merchant banking funds	$ 1,926		$ 1,985

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Investments - Additional Information (Detail) (USD $)	9 Months Ended			3 Months Ended		9 Months Ended						3 Months Ended		9 Months Ended								9 Months Ended	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Sep. 30, 2013 Merchant Banking Funds	Sep. 30, 2012 Merchant Banking Funds	Sep. 30, 2013 Merchant Banking Funds	Sep. 30, 2012 Merchant Banking Funds	Sep. 30, 2013 GCP II [Member]	Dec. 31, 2012 GCP II [Member]	Sep. 30, 2013 GCP I [Member]	Dec. 31, 2012 GCP I [Member]	Sep. 30, 2013 Merchant Banking Profit Overrides	Sep. 30, 2012 Merchant Banking Profit Overrides	Sep. 30, 2013 Merchant Banking Profit Overrides	Sep. 30, 2012 Merchant Banking Profit Overrides	Dec. 31, 2012 Merchant Banking Profit Overrides	Sep. 30, 2013 GCP III [Member]	Jul. 31, 2013 GCP III [Member]	Dec. 31, 2012 GCP III [Member]	Sep. 30, 2013 Barrow Street III	Dec. 31, 2005 Barrow Street III	Sep. 30, 2013 Nonsoftware License Arrangement [Member]	Sep. 30, 2013 Iridium [Member]	Sep. 30, 2012 Iridium [Member]	Sep. 30, 2013 Iridium [Member]	Sep. 30, 2012 Iridium [Member]	Dec. 31, 2012 Iridium [Member]
Fair Value, Measurement Inputs, Disclosure [Line Items]
Investments in merchant banking funds	$ 11,285,000		$ 16,772,000					$ 7,627,000	$ 11,173,000	$ 1,732,000	$ 2,247,000						$ 0	$ 2,000,000	$ 1,367,000
Non-compete and trademark licensing agreements amortization period																						5 years
Investment related to noncontrolling interests								900,000	1,100,000	100,000	300,000
Compensation payable	4,600,000		21,419,000									300,000		300,000		300,000
Gain (Loss) on Investments	(1,612,000)	100,000		394,000	161,000	(2,959,000)	1,253,000					0	0	0	0								(3,223,000)	(10,826,000)	1,347,000	(1,153,000)
Other commitment																					5,000,000
Unfunded commitments																				$ 100,000
Investment in Iridium (shares)																							1,595,629		1,595,629		5,084,016
Share price (usd per share)																							$ 6.88		$ 6.88		$ 6.72
The percentage of ownership interestests which is fully diluted (percent)																							2.00%		2.00%		7.00%
Fund commitments, expiration																				2015

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Earnings Per Share - Additional Information (Details) (Tranche One - Performance Stock [Member], Caliburn Acquisition [Member])	1 Months Ended
	Apr. 30, 2013
Tranche One - Performance Stock [Member] | Caliburn Acquisition [Member]
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Conversion of Stock, Shares Converted	659,926

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Related Parties - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012
Related Party Transactions [Abstract]
Tenant Reimbursements	$ 400,000	$ 400,000	$ 1,200,000	$ 1,200,000
Related Party Transaction, Due from (to) Related Party	$ 0		$ 0		$ 0

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Summary of Significant Accounting Policies - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012	Dec. 31, 2012	Dec. 31, 2011
Significant Accounting Policies [Line Items]
Client reimbursements	$ 1,300,000	$ 1,600,000	$ 4,800,000	$ 5,400,000
Cash on deposit with financial institutions	30,344,000	38,107,000	30,344,000	38,107,000	50,324,000	62,050,000
Carrying value of cash equivalents	6,800,000		6,800,000		4,500,000
Cash and cash equivalents, restricted from use	5,200,000		5,200,000		7,100,000
Bad debt expense	0	0	0	0
Long term receivables related to private equity and real estate capital advisory engagements	24,900,000		24,900,000		28,100,000
Installments period			3 years	3 years
Decrease in goodwill due to foreign currency translation			15,800,000
Depreciation and amortization of property and equipment			Depreciation is computed using the straight-line method over the life of the assets. Amortization of leasehold improvements is computed using the straight-line method over the lesser of the life of the asset or the remaining term of the lease.
Aircraft
Significant Accounting Policies [Line Items]
Estimated useful lives of fixed assets (in years)			7 years
Equipment
Significant Accounting Policies [Line Items]
Estimated useful lives of fixed assets (in years)			5 years
Furniture and Fixtures
Significant Accounting Policies [Line Items]
Estimated useful lives of fixed assets (in years)			7 years
Leasehold Improvements
Significant Accounting Policies [Line Items]
Estimated useful lives of fixed assets (in years)			10 years
Estimated useful lives of fixed assets, description			Lesser of 10 years or the remaining lease term
Deferred Compensation Plan
Significant Accounting Policies [Line Items]
Cash and cash equivalents, restricted from use	900,000		900,000		2,600,000
Capital advisory engagements
Significant Accounting Policies [Line Items]
Interest income on long term receivables	$ 300,000	$ 500,000	$ 600,000	$ 900,000
Minimum [Member] | Restricted Stock [Member]
Significant Accounting Policies [Line Items]
Compensation expense amortization period/service period following the date of grant			3 years
Maximum [Member] | Restricted Stock [Member]
Significant Accounting Policies [Line Items]
Compensation expense amortization period/service period following the date of grant			5 years

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Consolidated Statements of Changes in Equity (USD $) In Thousands, unless otherwise specified	Total	Common Stock	Contingent Convertible Preferred Stock	Restricted Stock Units	Additional Paid-in Capital	Exchangeable Shares of Subsidiary	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Parent	Noncontrolling Interests
Beginning Balance at Dec. 31, 2011		$ 358	$ 46,950	$ 99,916	$ 412,283	$ 6,578	$ 173,374	$ 3,128	$ (396,386)		$ 1,353
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued		7	0		51,306
Restricted stock units recognized				54,178
Restricted stock units delivered				(46,841)
Tax benefit from the delivery of restricted stock units					(4,947)
Exchangeable shares of subsidiary delivered						(4,620)
Dividends							(57,129)
Tax benefit from payment of restricted stock unit dividends							1,581
Net income allocated to common stockholders							42,092
Currency translation adjustment, net of tax								3,496
Repurchased									(83,165)
Net income (loss) allocated to noncontrolling interests											0
Distributions to noncontrolling interests											0
Ending Balance at Dec. 31, 2012	303,512	365	46,950	107,253	458,642	1,958	159,918	6,624	(479,551)	302,159	1,353
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued		13	(32,504)		75,716
Restricted stock units recognized				42,916
Restricted stock units delivered				(43,604)
Tax benefit from the delivery of restricted stock units					(1,855)
Exchangeable shares of subsidiary delivered						0
Dividends							(42,175)
Tax benefit from payment of restricted stock unit dividends							1,586
Net income allocated to common stockholders	30,902						30,902
Currency translation adjustment, net of tax	(11,413)							(11,413)
Repurchased									(54,796)
Net income (loss) allocated to noncontrolling interests	0										0
Distributions to noncontrolling interests											(311)
Ending Balance at Sep. 30, 2013	$ 267,987	$ 378	$ 14,446	$ 106,565	$ 532,503	$ 1,958	$ 150,231	$ (4,789)	$ (534,347)	$ 266,945	$ 1,042

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Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Operating activities:
Consolidated net income	$ 30,902	$ 26,965
Non-cash items included in consolidated net income:
Depreciation and amortization	3,612	5,463
Net investment gains	1,612	(100)
Restricted stock units recognized and common stock issued	42,916	42,008
Deferred taxes	(2,809)	(13,683)
Deferred gain on sale of certain merchant banking assets	(147)	(194)
Changes in operating assets and liabilities:
Advisory fees receivable	(10,201)	(5,549)
Other receivables and assets	(3,578)	(1,174)
Compensation payable	(16,807)	(27,098)
Accounts payable and accrued expenses	3,326	7,607
Current income taxes payable	(3,876)	1,989
Net cash provided by operating activities	44,950	36,234
Investing activities:
Purchases of investments	(500)	(6,536)
Proceeds from sales of investments	26,582	24,914
Distributions from investments	1,004	3,040
Purchases of property and equipment	(637)	(2,106)
Net cash provided by investing activities	26,449	19,312
Financing activities:
Proceeds from revolving bank loan	89,900	62,595
Repayment of revolving bank loan	(82,675)	(55,270)
Distributions to noncontrolling interests	(311)	0
Dividends paid	(42,175)	(42,221)
Purchase of treasury stock	(54,796)	(40,497)
Net tax (cost) from the delivery of restricted stock units and payment of dividend equivalents	(269)	(4,430)
Net cash used in financing activities	(90,326)	(79,823)
Effect of exchange rate changes on cash and cash equivalents	(1,053)	334
Net decrease in cash and cash equivalents	(19,980)	(23,943)
Cash and cash equivalents, beginning of year	50,324	62,050
Cash and cash equivalents, end of year	30,344	38,107
Supplemental disclosure of cash flow information:
Cash paid for interest	761	763
Cash paid for taxes, net of refunds	$ 27,040	$ 24,742

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Investments

9 Months Ended

Sep. 30, 2013

Schedule of Investments [Abstract]

Investments

Investments

Merchant Banking Funds

The Company has invested in certain previously sponsored merchant banking funds: Greenhill Capital Partners (“GCP I”) and Greenhill Capital Partners II (“GCP II”), which are families of merchant banking funds. In July 2013, the Company sold the remaining limited partnership interest in Greenhill Capital Partners III for approximately $2.0 million, which represented the book value of the investment at June 30, 2013. In connection with that sale, the purchasers assumed the remaining undrawn commitments to the fund.

The Company recognized a gain at the time of the exit from the merchant banking business, which is amortizing over a five year period ending in 2014.

As of September 30, 2013, the Company continues to retain control only of the general partner of GCP I and GCP II and consolidates the results of each such general partner. As the general partner, the Company is entitled to receive from those funds a portion of the override of the profits realized from investments. The Company recognizes profit overrides related to certain merchant banking funds at the time certain performance hurdles are achieved. The Company did not recognize any profit overrides for the three or nine month periods ended September 30, 2013 and 2012.

The carrying value of the Company’s investments in merchant banking funds are as follows (in thousands):

	As of September 30,		As of December 31,
	2013		2012
	(unaudited)
Investment in GCP I	$	1,732	$	2,247
Investment in GCP II	7,627		11,173
Investment in GCP III	—		1,367
Investment in other merchant banking funds	1,926		1,985
Total investments in merchant banking funds	$	11,285	$	16,772

The investment in GCP I represents an interest in a previously sponsored merchant banking fund and includes $0.1 million and $0.3 million at September 30, 2013 and December 31, 2012, respectively, related to the noncontrolling interests in the managing general partner of GCP I. The investment in GCP II principally represents the capital interest in a portfolio company and also includes $0.9 million and $1.1 million at September 30, 2013 and December 31, 2012, respectively, related to the noncontrolling interests in the general partner of GCP II.

Approximately $0.3 million of the Company’s compensation payable related to profit overrides for unrealized gains of GCP I at September 30, 2013 and December 31, 2012. This amount may increase or decrease depending on the change in the fair value of GCP I, and is payable, subject to clawback, at the time cash proceeds are realized.

Investments in other merchant banking funds includes the Company's investment in Barrow Street III, a real estate investment fund, which we committed $5.0 million to in 2005. At September 30, 2013, $0.1 million of the Company's commitment remains unfunded and may be drawn any time prior to the expiration of the fund in June 2015.

Other Investments

The Company has other investments including investments in Iridium and certain deferred compensation plan investments related to Greenhill Australia. The Company’s other investments are as follows (in thousands):

	As of September 30,		As of December 31,
	2013		2012
	(unaudited)
Iridium common stock	$	10,978	$	34,165
Deferred compensation plan investments	34		50
Total other investments	$	11,012	$	34,215

Iridium

At September 30, 2013, the Company owned 1,595,629 shares of Iridium common stock (NASDAQ:IRDM) with a quoted market price of $6.88 per share and had fully diluted share ownership in Iridium of approximately 2%. At December 31, 2012, the Company owned 5,084,016 shares of Iridium common stock with a quoted market price of $6.72 per share and had a fully diluted ownership of approximately 7%.

The carrying value of the investment in Iridium common stock is valued at the end of each period and its closing quoted market price. The Company’s investment in Iridium is accounted for as a trading security as the Company does not maintain or exercise significant influence over Iridium.

Deferred compensation plan investments

In connection with the acquisition of Caliburn Partnership Pty Limited ("Caliburn"), the Company assumed amounts due under Caliburn's deferred compensation plan. Under this plan, a portion of certain employees' compensation was deferred and invested in cash, or at the election of each respective employee, in certain mutual fund investments. These investments are being distributed to certain employees of Greenhill Australia over a period ending in 2016. The invested assets relating to this plan have been recorded on the condensed consolidated statements of financial condition as components of both cash and cash equivalents and other investments. The deferred compensation liability relating to the plan has been recorded on the condensed consolidated statements of financial condition as a component of compensation payable. Subsequent to the acquisition, the Company discontinued future participation in the plan.

Investment revenues

The Company’s investment revenues, by source, are as follows:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2013			2012			2013			2012
	(in thousands, unaudited)
Net realized and unrealized gains (losses) on investment in Iridium	$	(3,223	)	$	(10,826	)	$	1,347		$	(1,153	)
Net realized and unrealized gains (losses) on investments in merchant banking funds	394			161			(2,959		)	1,253
Deferred gain on sale of certain merchant banking assets	49			65			147			195
Interest income	340			590			793			1,299
Total investment revenues	$	(2,440	)	$	(10,010	)	$	(672	)	$	1,594

Fair Value Hierarchy

The following tables set forth by level, assets and liabilities measured at fair value on a recurring basis. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. There were no transfers between Level 1 and Level 2 investments in the fair value measurement hierarchy during the three and nine month periods ended September 30, 2013 and 2012.

Assets Measured at Fair Value on a Recurring Basis as of September 30, 2013

	Quoted Prices in Active  Markets for Identical Assets (Level 1)		Significant Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)		Balance as of September 30, 2013
	(in thousands)
Assets
Iridium common stock	$	10,978	$	—	$	—	$	10,978
Deferred compensation plan investments	—		34		—		34
Total investments	$	10,978	$	34	$	—	$	11,012

Assets Measured at Fair Value on a Recurring Basis as of December 31, 2012

	Quoted Prices in Active  Markets for Identical Assets (Level 1)		Significant Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)		Balance as of December 31, 2012
	(in thousands)
Assets
Iridium common stock	$	34,165	$	—	$	—	$	34,165
Deferred compensation plan investments	—		50		—		50
Total investments	$	34,165	$	50	$	—	$	34,215

Level 3 Gains and Losses

There were no Level 3 investments during the three and nine month periods ended September 30, 2013 and 2012.

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Organization

9 Months Ended

Sep. 30, 2013

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization

Organization

Greenhill & Co., Inc., a Delaware corporation, together with its subsidiaries (collectively, the “Company”), is a leading independent investment bank focused on providing financial advice on significant mergers, acquisitions, restructurings, financings and capital raisings to corporations, partnerships, institutions and governments. The Company acts for clients located throughout the world from its offices located in the United States, United Kingdom, Germany, Canada, Japan, Australia, Sweden and Brazil.

The Company's activities as an investment banking firm constitute one business segment, with two principal sources of revenue:

• Advisory, which includes engagements relating to mergers and acquisitions, financing advisory and restructuring, and private equity and real estate capital advisory services; and

• Investments, which includes the Company's principal investments in certain merchant banking funds, Iridium Communications Inc. (“Iridium”), other investments and interest income.

The Company's wholly-owned subsidiaries that provide advisory services include Greenhill & Co., LLC (“G&Co”), Greenhill & Co. International LLP (“GCI”), Greenhill & Co. Europe LLP (“GCE”), Greenhill & Co. Canada Ltd. (“GCC”), Greenhill & Co. Japan Ltd. (“GCJ”), Greenhill & Co. Australia Pty Limited (“Greenhill Australia”), and Greenhill & Co. Sweden AB ("GCS").

G&Co is engaged in investment banking activities principally in the U.S. G&Co is registered as a broker-dealer with the Securities and Exchange Commission (“SEC”) and the Financial Industry Regulatory Authority (“FINRA”), and is licensed in all 50 states and the District of Columbia. G&Co is also registered as a municipal advisor with the SEC and the Municipal Securities Rulemaking Board.

GCI is engaged in investment banking activities in the U.K. and GCE is engaged in investment banking activities in Europe. GCI and GCE are subject to regulation by the U.K. Financial Conduct Authority (“FCA”). GCJ and GCC are engaged in investment banking activities in Japan and Canada, respectively. GCJ is registered with the Kanto Local Finance Bureau in Japan and is subject to regulation by the Financial Services Agency in Japan. Greenhill Australia engages in investment banking activities in Australia and New Zealand and is licensed and subject to regulation by the Australian Securities and Investment Commission (“ASIC”). GCS is engaged in investment banking activities in Sweden and the general Nordic region and is subject to regulation by the Swedish Financial Supervisory Authority.

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Investments - Other Investments (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Schedule of Investments [Line Items]
Other investments	$ 11,012	$ 34,215
Fair Value, Measurements, Recurring
Schedule of Investments [Line Items]
Other investments	11,012	34,215
Fair Value, Measurements, Recurring | Iridium [Member]
Schedule of Investments [Line Items]
Other investments	10,978	34,165
Fair Value, Measurements, Recurring | Deferred Compensation Plan Investments [Member]
Schedule of Investments [Line Items]
Other investments	34	50
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring
Schedule of Investments [Line Items]
Other investments	10,978	34,165
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring | Iridium [Member]
Schedule of Investments [Line Items]
Other investments	10,978	34,165
Quoted Prices in Active Markets for Identical Assets (Level 1) | Fair Value, Measurements, Recurring | Deferred Compensation Plan Investments [Member]
Schedule of Investments [Line Items]
Other investments	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring
Schedule of Investments [Line Items]
Other investments	34	50
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Iridium [Member]
Schedule of Investments [Line Items]
Other investments	0	0
Significant Other Observable Inputs (Level 2) | Fair Value, Measurements, Recurring | Deferred Compensation Plan Investments [Member]
Schedule of Investments [Line Items]
Other investments	$ 34	$ 50

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Revolving Bank Loan Facility - Additional Information (Detail) (Line of Credit [Member], USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Line of Credit [Member]
Line of Credit Facility [Line Items]
Revolving loan facility, borrowing capacity	$ 45.0
Weighted average daily borrowings outstanding under the loan facility	$ 30.9	$ 27.3
Weighted average interest rate during period (percent)	3.25%	3.55%

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Business Information - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013 sources Segment	Sep. 30, 2012
Segment Reporting Information
Number of reportable segments (segments)			1
Number of principal sources of revenue (source of revenue)			2
Advisory revenues	$ 46,983	$ 72,757	$ 211,496	$ 191,160
Total investment revenues	(2,440)	(10,010)	(672)	1,594
Advisory revenues as a percentage of total revenue (percent)	100.00%	100.00%	100.00%	100.00%
Total Revenues	$ 44,543	$ 62,747	$ 210,824	$ 192,754
Advisory revenues
Segment Reporting Information
Advisory revenues as a percentage of total revenue (percent)	105.00%	116.00%	100.00%	99.00%
Investment Revenues [Member]
Segment Reporting Information
Advisory revenues as a percentage of total revenue (percent)	(5.00%)	(16.00%)	0.00%	1.00%

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Consolidated Statements of Financial Condition (Parenthetical) (USD $) In Millions, except Share data, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Statement of Financial Position [Abstract]
Cash and cash equivalents, restricted from use	$ 5.2	$ 7.1
Advisory fees receivable, allowance for doubtful accounts	0	0
Property and equipment, accumulated depreciation	$ 56.2	$ 54.8
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized	100,000,000	100,000,000
Common stock, shares issued	37,840,092	36,513,507
Common stock, shares outstanding	27,747,240	27,488,828
Contingent convertible preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Contingent convertible preferred stock, shares authorized	10,000,000	10,000,000
Contingent convertible preferred stock, shares issued	1,099,877	1,099,877
Contingent convertible preferred stock, shares outstanding	439,951	1,099,877
Exchangeable shares of subsidiary, shares issued	257,156	257,156
Exchangeable shares of subsidiary, shares outstanding	32,804	32,804
Treasury stock, par value (usd per share)	$ 0.01	$ 0.01
Treasury stock, shares	10,092,852	9,024,679

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Equity

9 Months Ended

Sep. 30, 2013

Stockholders' Equity Note [Abstract]

Equity

Equity

On September 18, 2013, a dividend of $0.45 per share was paid to stockholders of record on September 4, 2013. Dividends include dividend equivalents of $4.7 million and $4.2 million, which were paid on outstanding restricted stock units during the nine months ended September 30, 2013 and September 30, 2012, respectively.

During the nine months ended September 30, 2013, 662,569 restricted stock units vested and were issued as common stock of which the Company is deemed to have repurchased 214,303 shares at an average price of $57.22 per share in conjunction with the payment of tax liabilities in respect of stock delivered to its employees in settlement of restricted stock units. In addition, during the nine months ended September 30, 2013, the Company repurchased in open market transactions 853,870 shares of its common stock at an average price of $49.81 per share.

During the nine months ended September 30, 2012, 632,794 restricted stock units vested and were issued as common stock of which the Company is deemed to have repurchased 176,781 shares at an average price of $45.21 per share in conjunction with the payment of tax liabilities in respect of stock delivered to its employees in settlement of restricted stock units. In addition, during the nine months ended September 30, 2012, the Company repurchased in open market transactions 859,006 shares of its common stock at an average price of $37.84 per share.

In connection with the acquisition of Caliburn, 1,099,877 shares of contingent convertible preferred stock ("Performance Stock") were issued. The Performance Stock, which does not pay dividends, was issued in tranches of 659,926 shares and 439,951 shares and converts to shares of the Company's common stock promptly after the third and fifth anniversary of the closing of the acquisition, respectively, if certain separate revenue targets are achieved. The revenue target for the first tranche was achieved and on April 1, 2013, the third anniversary of the closing, 659,926 shares of Performance Stock, which had a fair value of $32.5 million at the acquisition date, were converted to common stock. If the revenue target for the second tranche is achieved the Performance Stock will be converted to common stock on April 1, 2015. If the revenue target for the second tranche is not achieved, the Performance Stock in that tranche will be canceled.

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Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Comprehensive Income [Abstract]
Consolidated net income	$ 1,797	$ 8,589	$ 30,902	$ 26,965
Currency translation adjustment, net of tax	3,190	3,276	(11,413)	3,742
Comprehensive income	4,987	11,865	19,489	30,707
Less: Net income allocated to noncontrolling interests	0	0	0	0
Comprehensive income allocated to common stockholders	$ 4,987	$ 11,865	$ 19,489	$ 30,707

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Consolidated Statements of Financial Condition (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Assets
Cash and cash equivalents ($5.2 million and $7.1 million restricted from use at September 30, 2013 and December 31, 2012, respectively)	$ 30,344	$ 50,324
Advisory fees receivable, net of allowance for doubtful accounts of $0.0 million at September 30, 2013 and December 31, 2012	64,645	54,444
Other receivables	4,341	1,554
Property and equipment, net of accumulated depreciation of $56.2 million and $54.8 million at September 30, 2013 and December 31, 2012, respectively	11,893	14,404
Other investments	11,012	34,215
Investments in merchant banking funds	11,285	16,772
Goodwill	149,112	164,890
Deferred tax asset	47,062	47,512
Other assets	2,982	2,855
Total assets	332,676	386,970
Liabilities and Equity
Compensation payable	4,600	21,419
Accounts payable and accrued expenses	9,450	7,872
Bank loan payable	36,350	29,125
Current income taxes payable	11,921	15,797
Deferred tax liability	2,368	9,245
Total liabilities	64,689	83,458
Common stock, par value $0.01 per share; 100,000,000 shares authorized, 37,840,092 and 36,513,507 shares issued as of September 30, 2013 and December 31, 2012, respectively; 27,747,240 and 27,488,828 shares outstanding as of September 30, 2013 and December 31, 2012, respectively	378	365
Contingent convertible preferred stock, par value $0.01 per share; 10,000,000 shares authorized and 1,099,877 shares issued as of September 30, 2013 and December 31, 2012 and 439,951 and 1,099,877 shares outstanding as of September 30, 2013 and December 31, 2012, respectively	14,446	46,950
Restricted stock units	106,565	107,253
Additional paid-in capital	532,503	458,642
Exchangeable shares of subsidiary; 257,156 shares issued as of September 30, 2013 and December 31, 2012, respectively; 32,804 shares outstanding as of September 30, 2013 and December 31, 2012, respectively	1,958	1,958
Retained earnings	150,231	159,918
Accumulated other comprehensive income (loss)	(4,789)	6,624
Treasury stock, at cost, par value $0.01 per share; 10,092,852 and 9,024,679 shares as of September 30, 2013 and December 31, 2012 respectively	(534,347)	(479,551)
Stockholders' equity	266,945	302,159
Noncontrolling interests	1,042	1,353
Total equity	267,987	303,512
Total liabilities and equity	$ 332,676	$ 386,970

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Investments - Investment Revenues (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Principal Transaction Revenue [Line Items]
Net realized and unrealized gains (losses)			$ (1,612)	$ 100
Interest income	340	590	793	1,299
Total investment revenues	(2,440)	(10,010)	(672)	1,594
Iridium [Member]
Principal Transaction Revenue [Line Items]
Net realized and unrealized gains (losses)	(3,223)	(10,826)	1,347	(1,153)
Merchant Banking Funds
Principal Transaction Revenue [Line Items]
Net realized and unrealized gains (losses)	394	161	(2,959)	1,253
Deferred gain on sale of certain merchant banking assets	$ 49	$ 65	$ 147	$ 195

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Business Information (Tables)

9 Months Ended

Sep. 30, 2013

Segment Reporting [Abstract]

Revenues by Source

The following provides a breakdown of our revenues by source for the three and nine month periods ended September 30, 2013 and 2012, respectively:

	For the Three Months Ended
	September 30, 2013					September 30, 2012
	Amount		% of Total			Amount		% of Total
	(in millions, unaudited)
Advisory revenues	$47.0			105	%	$72.7			116	%
Investment revenues	(2.4	)		(5	)%	(10.0	)		(16	)%
Total revenues	$44.6			100	%	$62.7			100	%

	For the Nine Months Ended
	September 30, 2013					September 30, 2012
	Amount		% of Total			Amount	% of Total
	(in millions, unaudited)
Advisory revenues	$211.5			100	%	$191.2		99	%
Investment revenues	(0.7	)		—	%	1.6		1	%
Total revenues	$210.8			100	%	$192.8		100	%

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Earnings Per Share Earnings Per Share - Reconciliation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Earnings Per Share [Abstract]
Numerator for basic and diluted EPS — net income allocated to common stockholders	$ 1,797	$ 8,589	$ 30,902	$ 26,965
Denominator for basic EPS — weighted average number of shares (shares)	29,792,997	30,252,342	30,094,986	30,611,270
Add — dilutive effect of:
Weighted average number of incremental shares issuable from restricted stock units (shares)	12,555	8,466	27,366	7,567
Denominator for diluted EPS — weighted average number of shares and dilutive potential shares (shares)	29,805,553	30,260,808	30,122,352	30,618,837
Earnings per share:
Basic (usd per share)	$ 0.06	$ 0.28	$ 1.03	$ 0.88
Diluted (usd per share)	$ 0.06	$ 0.28	$ 1.03	$ 0.88

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Regulatory Requirements - Additional Information (Detail) (USD $)	9 Months Ended
	Sep. 30, 2013
Regulatory Capital Requirements [Abstract]
Minimum net capital requirements	$ 5,000
Description of minimum net capital requirements	The greater of $5,000 or 1/15 of aggregate indebtedness
Net capital	1,400,000
Excess net capital	$ 1,100,000
Aggregate indebtedness to net capital ratio	2.72

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Revolving Bank Loan Facility

9 Months Ended

Sep. 30, 2013

Debt Disclosure [Abstract]

Revolving Bank Loan Facility

Revolving Bank Loan Facility

At September 30, 2013, the Company had a $45.0 million revolving loan facility from a U.S. banking institution to provide for working capital needs and for other general corporate purposes. Effective May 1, 2013, the loan facility was renewed, with a maturity date of April 30, 2014. The revolving loan facility is secured by any cash distributed in respect of the Company’s investment in the U.S. based merchant banking funds and cash distributions from G&Co. In addition, the revolving loan facility has a prohibition on the incurrence of additional indebtedness without the prior approval of the lender and the Company is required to comply with certain financial and liquidity covenants. The weighted average daily borrowings outstanding under the revolving loan facility were approximately $30.9 million and $27.3 million for the nine months ended September 30, 2013 and 2012, respectively. The weighted average interest rate was 3.25% and 3.55% for the nine months ended September 30, 2013 and 2012, respectively. At September 30, 2013, the Company was compliant with all loan covenants.

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Investments - Assets Measured at Fair Value on Recurring Basis (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	$ 11,012	$ 34,215
Fair Value, Measurements, Recurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	11,012	34,215
Fair Value, Measurements, Recurring | Iridium [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	10,978	34,165
Fair Value, Measurements, Recurring | Deferred Compensation Plan Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	34	50
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	10,978	34,165
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Iridium [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	10,978	34,165
Fair Value, Measurements, Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Deferred Compensation Plan Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	34	50
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Iridium [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0	0
Fair Value, Measurements, Recurring | Significant Other Observable Inputs (Level 2) | Deferred Compensation Plan Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	34	50
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Iridium [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	0	0
Fair Value, Measurements, Recurring | Significant Unobservable Inputs (Level 3) | Deferred Compensation Plan Investments [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other investments	$ 0	$ 0

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Income Taxes

9 Months Ended

Sep. 30, 2013

Income Tax Disclosure [Abstract]

Income Taxes

Income Taxes

The Company's effective tax rate will vary depending on the source of the income. Investment and certain foreign sourced income are taxed at a lower effective rate than U.S. trade or business income.

The Company believes it is more likely than not that the deferred tax asset, which relates principally to compensation expense deducted for book purposes but not yet deducted for tax purposes, will be realized as offsets to: (i) the realization of its deferred tax liabilities and (ii) future taxable income.

Any gain or loss resulting from the translation of deferred taxes for foreign affiliates is included in the foreign currency translation adjustment incorporated as a component of other comprehensive income, net of tax, in the condensed consolidated statements of changes in equity and the condensed consolidated statements of comprehensive income.

The Company's income tax returns are routinely examined by the U.S. federal, U.S. state, and international tax authorities. The Company regularly assesses its tax positions with respect to applicable income tax issues for open tax years in each respective jurisdiction in which the Company operates. As of September 30, 2013, the Company does not believe the resolution of any current ongoing income tax examinations will have a material adverse impact on the financial position of the Company.

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Related Parties

9 Months Ended

Sep. 30, 2013

Related Party Transactions [Abstract]

Related Parties

Related Parties

At September 30, 2013 and December 31, 2012, the Company had no amounts receivable or payable to related parties.

In conjunction with the sale of certain assets of the merchant banking business, the Company agreed to sublease office space to GCP Capital beginning in April 2011. This sublease is expected to terminate in December 2013. The Company also subleases airplane and office space to a firm owned by the Chairman of the Company. The Company recognized rent reimbursements of $0.4 million and $1.2 million for each of the three and nine month periods ended September 30, 2013 and 2012, respectively, which are included as a reduction of occupancy and equipment rental on the condensed consolidated statements of income.

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Consolidated Statements of Changes in Equity (Parenthetical) (USD $)	Sep. 30, 2013	Dec. 31, 2012
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Contingent convertible preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Treasury stock, par value (usd per share)	$ 0.01	$ 0.01
Common Stock
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Contingent Convertible Preferred Stock
Contingent convertible preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Treasury Stock
Treasury stock, par value (usd per share)	$ 0.01	$ 0.01

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Equity - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	1 Months Ended	9 Months Ended			9 Months Ended					1 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Sep. 30, 2012	Apr. 30, 2010	Sep. 30, 2013 Common Stock	Sep. 30, 2012 Common Stock	Sep. 30, 2013 Restricted Stock Units	Sep. 30, 2012 Restricted Stock Units	Apr. 30, 2010 Caliburn Acquisition [Member] Contingent Convertible Preferred Stock	Apr. 30, 2013 Tranche One - Performance Stock [Member] Caliburn Acquisition [Member]	Apr. 30, 2010 Tranche One - Performance Stock [Member] Caliburn Acquisition [Member] Contingent Convertible Preferred Stock	Apr. 30, 2010 Tranche Two - Performance Stock [Member] Caliburn Acquisition [Member] Contingent Convertible Preferred Stock
Stockholders Equity Note [Line Items]
Dividends declared per common share (in USD per share)	$ 0.45
Dividend equivalents paid on outstanding restricted stock units		$ 4.7	$ 4.2
Restricted stock units vested and issued as common stock (shares)							662,569	632,794
Repurchased shares for award (shares)					214,303	176,781
Average repurchase price of shares for award (USD per share)					$ 57.22	$ 45.21
Repurchased common stock (shares)					853,870	859,006
Average repurchase price of common stock (in USD per share)					$ 49.81	$ 37.84
Conversion to common stock shares if revenue targets are achieved (shares)									1,099,877			439,951
Conversion of Stock, Shares Converted										659,926
Revenue Target Period											3 years	5 years
Performance stock fair value at acquisition date				$ 32.5

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Subsequent Events

9 Months Ended

Sep. 30, 2013

Subsequent Events [Abstract]

Subsequent Events

Subsequent Events

The Company evaluates subsequent events through the date on which the financial statements are issued.

On October 16, 2013, the Board of Directors of the Company declared a quarterly dividend of $0.45 per share. The dividend will be payable on December 18, 2013 to the common stockholders of record on December 4, 2013.

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Earnings Per Share

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Earnings Per Share

Earnings Per Share

The computations of basic and diluted EPS are set forth below:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2013		2012		2013		2012
	(in thousands, except per share  amounts, unaudited)
Numerator for basic and diluted EPS — net income allocated to common stockholders	$	1,797	$	8,589	$	30,902	$	26,965
Denominator for basic EPS — weighted average number of shares	29,793		30,252		30,095		30,611
Add — dilutive effect of:
Weighted average number of incremental shares issuable from restricted stock units	13		8		27		8
Denominator for diluted EPS — weighted average number of shares and dilutive potential shares	29,806		30,260		30,122		30,619
Earnings per share:
Basic	$	0.06	$	0.28	$	1.03	$	0.88
Diluted	$	0.06	$	0.28	$	1.03	$	0.88

The weighted number of shares and dilutive potential shares for the three and nine month periods ended September 30, 2013 include the conversion of the first tranche of 659,926 shares of Performance Stock to common stock. The weighted number of shares for the three and nine month periods ended September 30, 2012 do not include the dilutive effect of the first tranche of Performance Stock since the revenue target was not achieved at that time. The weighted number of shares and dilutive potential shares for the three and nine month periods ended September 30, 2013 and 2012 do not include the Performance Stock related to the second tranche, which will be included in the Company's share count at the time the revenue target is met. If the revenue target for the second tranche is not achieved, the contingent convertible preferred shares in that tranche will be canceled.

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Earnings Per Share (Tables)

9 Months Ended

Sep. 30, 2013

Earnings Per Share [Abstract]

Computations of Basic and Diluted Earnings Per Share

The computations of basic and diluted EPS are set forth below:

	For the Three Months Ended September 30,				For the Nine Months Ended September 30,
	2013		2012		2013		2012
	(in thousands, except per share  amounts, unaudited)
Numerator for basic and diluted EPS — net income allocated to common stockholders	$	1,797	$	8,589	$	30,902	$	26,965
Denominator for basic EPS — weighted average number of shares	29,793		30,252		30,095		30,611
Add — dilutive effect of:
Weighted average number of incremental shares issuable from restricted stock units	13		8		27		8
Denominator for diluted EPS — weighted average number of shares and dilutive potential shares	29,806		30,260		30,122		30,619
Earnings per share:
Basic	$	0.06	$	0.28	$	1.03	$	0.88
Diluted	$	0.06	$	0.28	$	1.03	$	0.88

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Summary of Significant Accounting Policies (Policies)

9 Months Ended

Sep. 30, 2013

Accounting Policies [Abstract]

Basis of Financial Information

Basis of Financial Information

These condensed consolidated financial statements are prepared in conformity with accounting principles generally accepted in the United States (U.S. GAAP), which require management to make estimates and assumptions regarding future events that affect the amounts reported in our financial statements and these footnotes, including investment valuations, compensation accruals and other matters. Management believes that the estimates used in preparing its condensed consolidated financial statements are reasonable and prudent. Actual results could differ materially from those estimates. Certain reclassifications have been made to prior year information to conform to current year presentation.

The condensed consolidated financial statements of the Company include all consolidated accounts of Greenhill & Co., Inc. and all other entities in which the Company has a controlling interest after eliminations of all significant inter-company accounts and transactions. In accordance with the accounting pronouncements related to consolidation of variable interest entities, the Company consolidates the general partners of certain merchant banking funds in which it has a majority of the economic interest and control. The general partners account for their investments in these merchant banking funds under the equity method of accounting. As such, the general partners record their proportionate shares of income (loss) from the underlying merchant banking funds. As these merchant banking funds follow investment company accounting, and generally record all their assets and liabilities at fair value, the general partners’ investment in these merchant banking funds represents an estimation of fair value. The Company does not consolidate the merchant banking funds since the Company, through its general partner and limited partner interests, does not have a majority of the economic interest in such funds and the limited partners have certain rights to remove the general partner by a simple majority vote of unaffiliated third-party investors.

These condensed consolidated financial statements are unaudited and should be read in conjunction with the audited consolidated financial statements and notes thereto for the year ended December 31, 2012 included in the Company's Annual Report on Form 10-K filed with the SEC. The condensed consolidated financial information as of December 31, 2012 has been derived from audited consolidated financial statements not included herein. The results of operations for interim periods are not necessarily indicative of results for the entire year.

Revenue Recognition

Revenue Recognition

Advisory Revenues

The Company's accounting policy is to recognize revenue when (i) there is persuasive evidence of an arrangement with a client, (ii) the agreed-upon services have been completed and delivered to the client or the transaction or events noted in the engagement letter are determined to be substantially complete, (iii) fees are fixed and determinable, and (iv) collection is reasonably assured.

The Company recognizes advisory fee revenues for mergers and acquisitions or financing advisory and restructuring engagements when the services related to the underlying transactions are completed in accordance with the terms of the engagement letter and all other requirements for revenue recognition are satisfied.

The Company recognizes private equity and real estate capital advisory fees at the time of the client's acceptance of capital or capital commitments to a fund in accordance with the terms of the engagement letter. Generally, fee revenue is determined based upon a fixed percentage of capital committed to the fund. For multiple closings, revenue is recognized at each interim closing based on the amount of capital committed at each closing at the fixed fee percentage. At the final closing, revenue is recognized at the fixed percentage for the amount of capital committed since the last interim closing.

While the majority of the Company's fee revenue is earned at the conclusion of a transaction or closing of a fund, on-going retainer fees, substantially all of which relate to non-success based strategic advisory and financing advisory and restructuring assignments, are also earned and recognized as advisory fee revenue over the period in which the related service is rendered.

The Company’s clients reimburse certain expenses incurred by the Company in the conduct of advisory engagements. Expenses are reported net of such client reimbursements. Client reimbursements totaled $1.3 million and $1.6 million for the three months ended September 30, 2013 and 2012, respectively and $4.8 million and $5.4 million for the nine months ended September 30, 2013 and 2012, respectively.

Investment Revenues

Investment revenues consist of (i) gains (or losses) on the Company's investments in certain merchant banking funds, Iridium and other investments, (ii) profit overrides from certain merchant banking funds, if any, and (iii) interest income.

The Company recognizes revenue on its investments in merchant banking funds based on its allocable share of realized and unrealized gains (or losses) reported by such funds. The Company recognizes revenue on its other investments, including Iridium, which considers the Company's influence or control of the investee, based on gains and losses on investment positions held, which arise from sales or changes in the fair value of investments. The amount of gains or losses are not predictable and can cause periodic fluctuations in net income and therefore subject the Company to market and credit risk.

If certain financial returns are achieved over the life of a merchant banking fund, the Company may recognize merchant banking profit overrides at the time that certain financial returns are achieved. Profit overrides are generally calculated as a percentage of the profits over a specified threshold earned by each fund on investments managed on behalf of unaffiliated investors except the Company. The Company may be required to repay a portion of the overrides it realized in the event a minimum performance level is not achieved by the fund as a whole (we refer to these potential repayments as “clawbacks”). As of September 30, 2013, the Company believes it is more likely than not that the amount of profit overrides recognized as revenue in prior periods, which relates solely to its interest in GCP I, will be realized and accordingly, the Company has not reserved for any clawback obligations under applicable fund agreements.

Cash and Cash Equivalents

Cash and Cash Equivalents

The Company’s cash and cash equivalents consist of (i) cash held on deposit with financial institutions, (ii) cash equivalents and (iii) restricted cash.

At September 30, 2013 and December 31, 2012, the Company had $30.3 million and $50.3 million of cash and cash equivalents. The Company considers all highly liquid investments with a maturity date of three months or less, when purchased, to be cash equivalents. Cash equivalents primarily consist of money market funds and overnight deposits. At September 30, 2013 and December 31, 2012, the carrying value of the Company’s cash equivalents amounted to $6.8 million and $4.5 million, respectively, which approximated fair value, and are included in total cash and cash equivalents.

Also included in the total cash and cash equivalents balance at September 30, 2013 and December 31, 2012 was restricted cash of $5.2 million and $7.1 million, respectively (including $0.9 million and $2.6 million restricted for the payout of Greenhill Australia's deferred compensation plan, respectively).

The Company maintains its cash and cash equivalents with financial institutions with high credit ratings. Management believes that the Company is not exposed to significant credit risk due to the financial position of the depository institutions in which those deposits are held.

Advisory Fees Receivables

Advisory Fees Receivables

Receivables are stated net of an allowance for doubtful accounts. The estimate for the allowance for doubtful accounts is derived by the Company by utilizing past client transaction history and an assessment of the client’s creditworthiness. The Company did not record a charge for bad debt expense for either of the three or nine month periods ended September 30, 2013 or 2012.

Included in the advisory fees receivable balance at September 30, 2013 and December 31, 2012 were $24.9 million and $28.1 million, respectively, of long term receivables related to private equity and real estate capital advisory engagements, which are generally paid in installments over a period of three years. Included as a component of investment revenues on the condensed consolidated statements of income is interest income related to capital advisory engagements of $0.3 million and $0.5 million for the three month periods ended September 30, 2013 and 2012, respectively, and $0.6 million and $0.9 million for the nine month periods ended September 30, 2013 and 2012, respectively.

Credit risk related to advisory fees receivable is disbursed across a large number of clients located in various geographic areas. The Company controls credit risk through credit approvals and monitoring procedures but does not require collateral to support accounts receivable.

Investments

Investments

The Company's investment in Iridium is valued using its quoted market price. The Company's investments in merchant banking funds are recorded under the equity method of accounting based upon the Company's proportionate share of the estimated fair value of the underlying merchant banking fund's net assets. The value of merchant banking fund investments in privately held companies is determined by the general partner of the fund after giving consideration to the cost of the security, the pricing of other sales of securities by the portfolio company, the price of securities of other companies comparable to the portfolio company, purchase multiples paid in other comparable third-party transactions, the original purchase price multiple, market conditions, liquidity, operating results and other qualitative and quantitative factors. Discounts may be applied to the funds' privately held investments to reflect the lack of liquidity and other transfer restrictions. Because of the inherent uncertainty of valuations as well as the discounts applied, the estimated fair values of investments in privately held companies may differ significantly from the values that would have been used had a ready market for the securities existed. The value of merchant banking fund investments in publicly traded securities is determined using quoted market prices discounted for any legal or contractual restrictions on sale. The values at which the Company's investments are carried on its condensed consolidated statements of financial condition are adjusted to estimated fair value at the end of each quarter and the volatility in general economic conditions, stock markets and commodity prices may result in significant changes in the estimated fair value of the investments from period to period.

Goodwill

Goodwill

Goodwill is the cost of acquired companies in excess of the fair value of identifiable net assets at acquisition date. The Company tests its goodwill for impairment at least annually. An impairment loss is triggered if the estimated fair value of an operating unit is less than estimated net book value. Such loss is calculated as the difference between the estimated fair value of goodwill and its carrying value.

Goodwill is translated at the rate of exchange prevailing at the end of the periods presented in accordance with the accounting guidance for foreign currency translation. Any translation gain or loss is included in the foreign currency translation adjustment, which is included as a component of other comprehensive income in the condensed consolidated statements of changes in equity. At September 30, 2013, goodwill decreased by $15.8 million from the beginning of the year as a result of the foreign currency translation adjustment.

Restricted Stock Units

Restricted Stock Units

The Company accounts for its share-based compensation payments under which the fair value of restricted stock units granted to employees with future service requirements is recorded as compensation expense and the units are generally amortized over a three to five year service period following the date of grant. Compensation expense is determined based upon the fair market value of the Company’s common stock at the date of grant. As the Company expenses the awards, the restricted stock units recognized are recorded within equity. The restricted stock units are reclassified into common stock and additional paid-in capital upon vesting. The Company records as treasury stock the repurchase of stock delivered to its employees in settlement of tax liabilities incurred upon the vesting of restricted stock units. The Company records dividend equivalent payments on outstanding restricted stock units as a dividend payment and a charge to equity.

Earnings per Share

Earnings per Share

The Company calculates basic earnings per share (“EPS”) by dividing net income allocated to common stockholders by the weighted average number of shares outstanding for the period. The denominator for basic EPS includes the weighted average number of shares deemed issuable due to the vesting of restricted stock units for accounting purposes and the contingently issuable convertible preferred shares deemed to meet the performance contingency.

Diluted EPS includes the determinants of basic EPS plus the dilutive effect of the common stock deliverable pursuant to restricted stock units for which future service is required as a condition to the delivery of the underlying common stock. Under the treasury method, the number of shares issuable upon the vesting of restricted stock units included in the calculation of diluted EPS is the excess, if any, of the number of shares expected to be issued, less the number of shares that could be purchased by the Company with the proceeds to be received upon settlement at the average market closing price during the reporting period.

Provision for Taxes

Provision for Taxes

The Company accounts for taxes in accordance with the accounting guidance for income taxes which requires the recognition of tax benefits or expenses on the temporary differences between the financial reporting and tax bases of its assets and liabilities.

The Company follows the guidance for income taxes in recognizing, measuring, presenting and disclosing in its financial statements uncertain tax positions taken or expected to be taken on its income tax returns. Income tax expense is based on pre-tax accounting income, including adjustments made for the recognition or derecognition related to uncertain tax positions. The recognition or derecognition of income tax expense related to uncertain tax positions is determined under the guidance.

Deferred tax assets and liabilities are recognized for the future tax attributable to differences between the financial statement carrying amounts of existing assets and liabilities and their respective tax bases. Deferred tax assets and liabilities are measured using enacted tax rates expected to be recovered or settled. The effect on deferred tax assets and liabilities of a change in tax rates is recognized in earnings in the period of change. Management applies the “more-likely-than-not criteria” when determining tax benefits.

Foreign Currency Translation

Foreign Currency Translation

Assets and liabilities denominated in foreign currencies have been translated at rates of exchange prevailing at the end of the periods presented in accordance with the accounting guidance for foreign currency translation. Income and expenses transacted in foreign currency have been translated at average monthly exchange rates during the period. Translation gains and losses are included in the foreign currency translation adjustment, which is included as a component of other comprehensive income in the condensed consolidated statements of changes in equity. Foreign currency transaction gains and losses are included in the condensed consolidated statements of income.

Financial Instruments and Fair Value

Financial Instruments and Fair Value

The Company accounts for financial instruments measured at fair value in accordance with accounting guidance for fair value measurements and disclosures which establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. The hierarchy gives the highest priority to unadjusted quoted prices in active markets for identical assets or liabilities (Level 1 measurements) and the lowest priority to unobservable inputs (Level 3 measurements). The three levels of the fair value hierarchy under the pronouncement are described below:

Basis of Fair Value Measurement

Level 1 – Unadjusted quoted prices in active markets that are accessible at the measurement date for identical, unrestricted assets or liabilities;

Level 2 – Quoted prices in markets that are not active or financial instruments for which all significant inputs are observable, either directly or indirectly; and

Level 3 – Prices or valuations that require inputs that are both significant to the fair value measurement and unobservable.

A financial instrument’s level within the fair value hierarchy is based on the lowest level of any input that is significant to the fair value measurement. In determining the appropriate levels, the Company performs an analysis of the assets and liabilities that are subject to these disclosures. At each reporting period, all assets and liabilities for which the fair value measurement is based on significant unobservable inputs or instruments which trade infrequently and therefore have little or no price transparency are classified as Level 3. Transfers between levels are recognized as of the end of the period in which they occur.

Fair Value of Other Financial Instruments

The Company believes that the carrying values of all other financial instruments presented in the condensed consolidated statements of financial condition approximate their fair value generally due to their short-term nature and generally negligible credit risk. These fair value measurements would be categorized as Level 2 within the fair value hierarchy.

Noncontrolling Interests

Noncontrolling Interests

The portion of the consolidated interests in the general partners of certain of the merchant banking funds not held by the Company is presented as noncontrolling interest, included as a component of equity in the condensed consolidated statements of financial condition. Additionally, the condensed consolidated statements of income separately present income allocated to both noncontrolling interests and common stockholders.

Property and Equipment

Property and Equipment

Property and equipment is stated at cost less accumulated depreciation and amortization. Depreciation is computed using the straight-line method over the life of the assets. Amortization of leasehold improvements is computed using the straight-line method over the lesser of the life of the asset or the remaining term of the lease. Estimated useful lives of the Company’s fixed assets are generally as follows:

Aircraft – 7 years

Equipment – 5 years

Furniture and fixtures – 7 years

Leasehold improvements – the lesser of 10 years or the remaining lease term

XML

Document and Entity Information	9 Months Ended
	Sep. 30, 2013	Oct. 30, 2013
Document Documentand Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Sep. 30, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q3
Trading Symbol	GHL
Entity Registrant Name	GREENHILL & CO INC
Entity Central Index Key	0001282977
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		27,767,702

XML

Investments (Tables)

9 Months Ended

Sep. 30, 2013

Schedule of Investments [Abstract]

Carrying Value of Investments in Merchant Banking Funds

The carrying value of the Company’s investments in merchant banking funds are as follows (in thousands):

	As of September 30,		As of December 31,
	2013		2012
	(unaudited)
Investment in GCP I	$	1,732	$	2,247
Investment in GCP II	7,627		11,173
Investment in GCP III	—		1,367
Investment in other merchant banking funds	1,926		1,985
Total investments in merchant banking funds	$	11,285	$	16,772

Carrying Value of Other Investments

The Company has other investments including investments in Iridium and certain deferred compensation plan investments related to Greenhill Australia. The Company’s other investments are as follows (in thousands):

	As of September 30,		As of December 31,
	2013		2012
	(unaudited)
Iridium common stock	$	10,978	$	34,165
Deferred compensation plan investments	34		50
Total other investments	$	11,012	$	34,215

Investment Revenues by Source

The Company’s investment revenues, by source, are as follows:

	For the Three Months Ended September 30,						For the Nine Months Ended September 30,
	2013			2012			2013			2012
	(in thousands, unaudited)
Net realized and unrealized gains (losses) on investment in Iridium	$	(3,223	)	$	(10,826	)	$	1,347		$	(1,153	)
Net realized and unrealized gains (losses) on investments in merchant banking funds	394			161			(2,959		)	1,253
Deferred gain on sale of certain merchant banking assets	49			65			147			195
Interest income	340			590			793			1,299
Total investment revenues	$	(2,440	)	$	(10,010	)	$	(672	)	$	1,594

Assets and Liabilities Measured at Fair Value on Recurring Basis

The following tables set forth by level, assets and liabilities measured at fair value on a recurring basis. Assets and liabilities are classified in their entirety based on the lowest level of input that is significant to the fair value measurement. There were no transfers between Level 1 and Level 2 investments in the fair value measurement hierarchy during the three and nine month periods ended September 30, 2013 and 2012.

Assets Measured at Fair Value on a Recurring Basis as of September 30, 2013

	Quoted Prices in Active  Markets for Identical Assets (Level 1)		Significant Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)		Balance as of September 30, 2013
	(in thousands)
Assets
Iridium common stock	$	10,978	$	—	$	—	$	10,978
Deferred compensation plan investments	—		34		—		34
Total investments	$	10,978	$	34	$	—	$	11,012

Assets Measured at Fair Value on a Recurring Basis as of December 31, 2012

	Quoted Prices in Active  Markets for Identical Assets (Level 1)		Significant Other Observable  Inputs (Level 2)		Significant Unobservable  Inputs (Level 3)		Balance as of December 31, 2012
	(in thousands)
Assets
Iridium common stock	$	34,165	$	—	$	—	$	34,165
Deferred compensation plan investments	—		50		—		50
Total investments	$	34,165	$	50	$	—	$	34,215