10-Q

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C.  20549

FORM 10-Q

(Mark One)

x Quarterly Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the quarterly period ended June 30, 2011.

or

o Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

For the transition period from  to

Commission File No. 1-13998

Insperity, Inc.

(Exact name of registrant as specified in its charter)

Delaware	76-0479645
(State or other jurisdiction of	(I.R.S. Employer
incorporation or organization)	Identification No.)
19001 Crescent Springs Drive
Kingwood, Texas	77339
(Address of principal executive offices)	(Zip Code)

(Registrant’s Telephone Number, Including Area Code):  (281) 358-8986

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 xNo o

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 during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).  Yes xNo o

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 definition of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.

Large accelerated filer  x Accelerated filer  o Non-accelerated filer  o Smaller reporting company  o

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

As of July 25, 2011, 26,466,410 shares of the registrant’s common stock, par value $0.01 per share, were outstanding.

TABLE OF CONTENTS

Part I
Item 1.	Financial Statements	3
Item 2.	Management’s Discussion and Analysis of Financial Condition and Results of Operations	18
Item 3.	Quantitative and Qualitative Disclosures about Market Risk	28
Item 4.	Controls and Procedures	28
Part II
Item 1.	Legal Proceedings	29
Item 1a.	Risk Factors	29
Item 2.	Unregistered Sales of Equity Securities and Use of Proceeds	30
Item 6.	Exhibits	31

PART I

ITEM 1.  FINANCIAL STATEMENTS

INSPERITY, INC.

CONSOLIDATED BALANCE SHEETS

(in thousands)

ASSETS

	June 30, 2011			December 31, 2010
	(Unaudited)
Current assets:
Cash and cash equivalents	$	265,191		$	234,829
Restricted cash		41,331			41,204
Marketable securities		37,598			43,367
Accounts receivable, net:
Trade		1,601			1,194
Unbilled		128,302			134,187
Other		5,186			6,726
Prepaid insurance		24,523			24,978
Other current assets		9,745			8,528
Income taxes receivable		976			1,808
Deferred income taxes		108			1,267
Total current assets		514,561			498,088
Property and equipment:
Land		3,653			3,260
Buildings and improvements		65,999			64,953
Computer hardware and software		74,911			67,714
Software development costs		28,804			27,482
Furniture and fixtures		35,136			35,164
Aircraft		31,441			31,524
		239,944			230,097
Accumulated depreciation and amortization		(158,738	)		(154,070	)
Total property and equipment, net		81,206			76,027
Other assets:
Prepaid health insurance		9,000			9,000
Deposits – health insurance		2,640			2,640
Deposits – workers’ compensation		45,724			51,731
Goodwill and other intangible assets, net		29,280			21,251
Other assets		1,131			1,108
Total other assets		87,775			85,730
Total assets	$	683,542		$	659,845

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INSPERITY, INC.

CONSOLIDATED BALANCE SHEETS (Continued)

(in thousands)

LIABILITIES AND STOCKHOLDERS’ EQUITY

	June 30, 2011			December 31, 2010
	(Unaudited)
Current liabilities:
Accounts payable	$	2,424		$	3,309
Payroll taxes and other payroll deductions payable		98,210			145,096
Accrued worksite employee payroll cost		171,076			109,697
Accrued health insurance costs		12,425			15,419
Accrued workers’ compensation costs		42,926			42,081
Accrued corporate payroll and commissions		19,764			23,743
Other accrued liabilities		15,493			14,264
Total current liabilities		362,318			353,609
Noncurrent liabilities:
Accrued workers’ compensation costs		59,735			55,730
Other accrued liabilities		1,299			1,261
Deferred income taxes		9,097			8,850
Total noncurrent liabilities		70,131			65,841
Commitments and contingencies
Stockholders’ equity:
Common stock		309			309
Additional paid-in capital		136,193			135,607
Treasury stock, at cost		(121,964	)		(124,464	)
Accumulated other comprehensive income, net of tax		59			21
Retained earnings		236,496			228,922
Total stockholders’ equity		251,093			240,395
Total liabilities and stockholders’ equity	$	683,542		$	659,845

See accompanying notes.

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INSPERITY, INC.

CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share amounts)

(Unaudited)

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Revenues (gross billings of $2.731 billion, $2.354 billion, $5.619 billion and $4.830 billion, less worksite employee payroll cost of $2.258 billion, $1.942 billion, $4.610 billion and $3.960 billion, respectively)	$	472,903		$	412,418		$	1,009,284		$	870,080
Direct costs:
Payroll taxes, benefits and workers’ compensation costs		389,062			341,061			834,484			726,038
Gross profit		83,841			71,357			174,800			144,042
Operating expenses:
Salaries, wages and payroll taxes		38,467			34,505			78,064			73,692
Stock-based compensation		2,556			2,410			4,346			4,178
General and administrative expenses		17,023			14,634			38,916			32,128
Commissions		3,255			2,818			6,351			5,605
Advertising		7,539			4,698			13,045			8,575
Depreciation and amortization		3,601			3,723			7,549			7,534
		72,441			62,788			148,271			131,712
Operating income		11,400			8,569			26,529			12,330
Other income (expense):
Interest income		304			255			588			458
Income before income tax expense		11,704			8,824			27,117			12,788
Income tax expense		4,963			3,706			11,590			5,371
Net income	$	6,741		$	5,118		$	15,527		$	7,417
Less net income allocated to common shares		(199	)	$	(51	)		(463	)		(214	)
Net income allocated to participating securities	$	6,542		$	5,067		$	15,064		$	7,203
Basic net income per share of common stock	$	0.25		$	0.20		$	0.59		$	0.29
Diluted net income per share of common stock	$	0.25		$	0.20		$	0.59		$	0.28

See accompanying notes.

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INSPERITY, INC.

CONSOLIDATED STATEMENT OF STOCKHOLDERS’ EQUITY

SIX MONTHS ENDED JUNE 30, 2011

(in thousands)

(Unaudited)

	Common Stock Issued				Additional Paid-In			Treasury			Accumulated Other Comprehensive		Retained
	Shares		Amount		Capital			Stock			Income (Loss)		Earnings			Total
Balance at December 31, 2010		30,839	$	309	$	135,607		$	(124,464	)	$	21	$	228,922		$	240,395
Purchase of treasury stock, at cost		―		―		―			(6,639	)		—		―			(6,639	)
Exercise of stock options		―		―		(966	)		4,249			—		―			3,283
Income tax benefit from stock-based compensation, net		―		―		1,610			—			—		―			1,610
Stock-based compensation expense		—		—		(140	)		4,486			—		—			4,346
Other		―		―		82			404			—		―			486
Dividends paid		—		—		—			—			—		(7,953	)		(7,953	)
Change in unrealized gain on marketable securities, net of tax:
Unrealized gain		—		—		—			—			38		—			38
Net income		—		—		—			—			—		15,527			15,527
Comprehensive income		—		—		—			—			—		—			15,565
Balance at June 30, 2011		30,839	$	309	$	136,193		$	(121,964	)	$	59	$	236,496		$	251,093

See accompanying notes.

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INSPERITY, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(Unaudited)

	Six Months Ended June 30,
	2011			2010
Cash flows from operating activities:
Net income	$	15,527		$	7,417
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization		7,546			7,567
Amortization of marketable securities		985			640
Stock-based compensation		4,346			4,178
Deferred income taxes		1,379			4,573
Changes in operating assets and liabilities, net of effects from acquisitions:
Restricted cash		(127	)		(1,308	)
Accounts receivable		7,018			(54,450	)
Prepaid insurance		455			(7,435	)
Other current assets		(1,217	)		(1,789	)
Other assets		5,909			9,768
Accounts payable		(885	)		(530	)
Payroll taxes and other payroll deductions payable		(46,886	)		(49,494	)
Accrued worksite employee payroll expense		61,379			59,549
Accrued health insurance costs		(2,994	)		4,555
Accrued workers’ compensation costs		4,850			4,484
Accrued corporate payroll, commissions and other accrued liabilities		(3,537	)		3,506
Income taxes payable/receivable		562			(1,439	)
Total adjustments		38,783			(17,625	)
Net cash provided by (used in) operating activities		54,310			(10,208	)
Cash flows from investing activities:
Marketable securities purchases		(13,903	)		(47,787	)
Marketable securities proceeds from dispositions		17,387			2,415
Marketable securities proceeds from maturities		1,365			9,863
Cash exchanged for acquisitions		(11,450	)		(5,648	)
Property and equipment		(8,404	)		(2,430	)
Net cash used in investing activities		(15,005	)		(43,587	)

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INSPERITY, INC.

CONSOLIDATED STATEMENTS OF CASH FLOWS (Continued)

(in thousands)

(Unaudited)

	Six Months Ended June 30,
	2011			2010
Cash flows from financing activities:
Purchase of treasury stock	$	(6,639	)	$	(2,387	)
Dividends paid		(7,953	)		(6,775	)
Proceeds from the exercise of stock options		3,283			4,517
Income tax benefit from stock-based compensation		1,880			295
Other		486			442
Net cash used in financing activities		(8,943	)		(3,908	)
Net increase (decrease) in cash and cash equivalents		30,362			(57,703	)
Cash and cash equivalents at beginning of period		234,829			227,085
Cash and cash equivalents at end of period	$	265,191		$	169,382

See accompanying notes.

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INSPERITY, INC.

NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

June 30, 2011

(Unaudited)

1. Basis of Presentation

Insperity, Inc., a Delaware corporation formerly named Administaff, Inc. (“Insperity” or the “Company”) provides an array of human resources (“HR”) and business solutions designed to help improve business performance. The Company’s name change, which was effective March 3, 2011, reflects the Company’s evolution over the past 25 years from a professional employer organization (“PEO”), an industry it pioneered, to its current position as a comprehensive business performance solutions provider.  The Company’s most comprehensive HR business offering is provided through its PEO services, now known as Workforce OptimizationTM, which encompasses a broad range of human resource functions, including payroll and employment administration, employee benefits, workers’ compensation, government compliance, performance management, and training and development services.  In addition to Workforce Optimization, the Company provides Performance Management, Expense Management, Time and Attendance, Organizational Planning, Employment Screening, Recruiting Services, Retirement Services, Business Insurance and Technology Services solutions, many of which are offered via desktop applications and software as a service (“SaaS”) delivery models (“Adjacent Businesses”). For the six months ended June 30, 2011 and 2010, revenues from the Company’s Texas markets represented 27% and 29%, while revenues from the Company’s California markets represented 16% and 15%, of the Company’s total revenues, respectively.

The consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are wholly owned.  Intercompany accounts and transactions have been eliminated in consolidation.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes.  Actual results could differ from those estimates.

The accompanying consolidated financial statements should be read in conjunction with the Company’s audited consolidated financial statements as of and for the year ended December 31, 2010. The Company’s Consolidated Balance Sheet at December 31, 2010 has been derived from the audited financial statements at that date, but does not include all of the information or footnotes required by GAAP for complete financial statements.  The Company’s Consolidated Balance Sheet at June 30, 2011 and the Consolidated Statements of Operations, Cash Flows and Stockholders’ Equity for the periods ended June 30, 2011 and 2010, have been prepared by the Company without audit.  In the opinion of management, all adjustments, consisting only of normal recurring adjustments necessary to present fairly the consolidated financial position, results of operations and cash flows, have been made. Certain prior year amounts have been reclassified to conform to the 2011 presentation.

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The Company has evaluated subsequent events through the time these financial statements in the Form 10-Q report were filed with the Securities and Exchange Commission.

The results of operations for the interim periods are not necessarily indicative of the operating results for a full year or of future operations.

2. Accounting Policies

Health Insurance Costs

The Company provides group health insurance coverage to its worksite employees through a national network of carriers including UnitedHealthcare (“United”), PacifiCare, Kaiser Permanente, Blue Shield of California, Hawaii Medical Service Association, Unity Health Plans and Tufts, all of which provide fully insured policies or service contracts.

The policy with United provides the majority of the Company’s health insurance coverage.  As a result of certain contractual terms, the Company has accounted for this plan since its inception using a partially self-funded insurance accounting model.  Accordingly, Insperity records the costs of the United plan, including an estimate of the incurred claims, taxes and administrative fees (collectively the “Plan Costs”) as benefits expense in the Consolidated Statements of Operations.  The estimated incurred claims are based upon: (i) the level of claims processed during the quarter; (ii) estimated completion rates based upon recent claim development patterns under the plan; and (iii) the number of participants in the plan, including both active and COBRA enrollees.  Each reporting period, changes in the estimated ultimate costs resulting from claim trends, plan design and migration, participant demographics and other factors are incorporated into the benefits costs.

Additionally, since the plan’s inception, under the terms of the contract, United establishes cash funding rates 90 days in advance of the beginning of a reporting quarter.  If the Plan Costs for a reporting quarter are greater than the premiums paid and owed to United, a deficit in the plan would be incurred and a liability for the excess costs would be accrued in the Company’s Consolidated Balance Sheet.  On the other hand, if the Plan Costs for the reporting quarter are less than the premiums paid and owed to United, a surplus in the plan would be incurred and the Company would record an asset for the excess premiums in its Consolidated Balance Sheet.  The terms of the arrangement require the Company to maintain an accumulated cash surplus in the plan of $9.0 million, which is reported as long-term prepaid insurance.  In addition, United requires a deposit equal to approximately one day of claims funding activity, which was $2.6 million as of June 30, 2011, and is reported as a long-term asset.  As of June 30, 2011, Plan Costs were less than the net premiums paid and owed to United by $29.4 million.  As this amount is in excess of the agreed-upon $9.0 million surplus maintenance level, the $20.4 million balance is included in prepaid insurance, a current asset, in the Company’s Consolidated Balance Sheet.  The premiums owed to United at June 30, 2011 were $9.1 million, which is included in accrued health insurance costs, a current liability in the Company’s Consolidated Balance Sheet.

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Workers’ Compensation Costs

The Company’s workers’ compensation coverage has been provided through an arrangement with the ACE Group of Companies (“the ACE Program”) since 2007.  The ACE Program is fully insured in that ACE has the responsibility to pay all claims incurred regardless of whether the Company satisfies its responsibilities.  Through September 30, 2010, the Company bore the economic burden for the first $1 million layer of claims per occurrence and the insurance carrier was and remains responsible for the economic burden for all claims in excess of such first $1 million layer.

Effective for the ACE Program year beginning on October 1, 2010, in addition to the Company bearing the economic burden for the first $1 million layer of claims per occurrence, the Company will also bear the economic burden for those claims exceeding $1 million, up to a maximum aggregate amount of $5 million per policy year.

Because the Company bears the economic burden for claims up to the levels noted above, such claims, which are the primary component of the Company’s workers’ compensation costs, are recorded in the period incurred.  Workers’ compensation insurance includes ongoing health care and indemnity coverage whereby claims are paid over numerous years following the date of injury.  Accordingly, the accrual of related incurred costs in each reporting period includes estimates, which take into account the ongoing development of claims and therefore requires a significant level of judgment.

The Company employs a third party actuary to estimate its loss development rate, which is primarily based upon the nature of worksite employees’ job responsibilities, the location of worksite employees, the historical frequency and severity of workers’ compensation claims, and an estimate of future cost trends.  Each reporting period, changes in the actuarial assumptions resulting from changes in actual claims experience and other trends are incorporated into the Company’s workers’ compensation claims cost estimates.  During the six months ended June 30, 2011 and 2010, Insperity reduced accrued workers’ compensation costs by $4.0 million and $3.7 million, respectively, for changes in estimated losses related to prior reporting periods.  Workers’ compensation cost estimates are discounted to present value at a rate based upon the U.S. Treasury rates that correspond with the weighted average estimated claim payout period (the average discount rates utilized in 2011 and 2010 were 1.3% and 1.8%, respectively) and are accreted over the estimated claim payment period and included as a component of direct costs in the Company’s Consolidated Statements of Operations.

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The following table provides the activity and balances related to incurred but not paid workers’ compensation claims for the six months ended June 30, 2011 and 2010:

	2011			2010
	(in thousands)
Beginning balance, January 1,	$	96,934		$	88,450
Accrued claims		19,523			16,587
Present value discount		(898	)		(1,036	)
Paid claims		(14,493	)		(11,783	)
Ending balance	$	101,066		$	92,218
Current portion of accrued claims	$	41,331		$	37,744
Long-term portion of accrued claims		59,735			54,474
	$	101,066		$	92,218

The current portion of accrued workers’ compensation costs on the Consolidated Balance Sheet at June 30, 2011 includes $1.6 million of workers’ compensation administrative fees.

At the beginning of each policy period, the insurance carrier establishes monthly funding requirements comprised of premium costs and funds to be set aside for payment of future claims (“claim funds”).  The level of claim funds is primarily based upon anticipated worksite employee payroll levels and expected workers’ compensation loss rates, as determined by the insurance carrier.  Monies funded into the program for incurred claims expected to be paid within one year are recorded as restricted cash, a short-term asset, while the remainder of claim funds are included in deposits, a long-term asset in the Company’s Consolidated Balance Sheets.  In the first half of 2011 and 2010, the Company received $9.6 million and $15.6 million, respectively, for the return of excess claim funds related to the ACE Program, which reduced deposits.  As of June 30, 2011, the Company had restricted cash of $41.3 million and deposits of $45.7 million.

The Company’s estimate of incurred claim costs expected to be paid within one year are recorded as accrued workers’ compensation costs and included in short-term liabilities, while its estimate of incurred claim costs expected to be paid beyond one year are included in long-term liabilities on the Company’s Consolidated Balance Sheets.

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3. Cash, Cash Equivalents and Marketable Securities

The following table summarizes the Company’s investments in cash equivalents and marketable securities held by investment managers and overnight investments:

	June 30,			December 31,
	2011			2010
	(in thousands)
Overnight Holdings
Money market funds (cash equivalents)	$	82,413		$	157,680
Investment Holdings
Money market funds (cash equivalents)		87,952			72,258
Marketable securities		37,598			43,367
		207,963			273,305
Cash held in demand accounts		105,672			31,295
Outstanding checks		(10,846	)		(26,404	)
Total cash, cash equivalents and marketable securities	$	302,789		$	278,196
Cash and cash equivalents	$	265,191		$	234,829
Marketable securities		37,598			43,367
	$	302,789		$	278,196

The Company’s cash and overnight holdings fluctuate based on the timing of the client’s payroll processing cycle.  Included in the cash balance as of June 30, 2011 and December 31, 2010, are $83.6 million and $128.8 million, respectively, in withholdings associated with federal and state income taxes, employment taxes and other payroll deductions, as well as $81.1 million and $8.1 million in client prepayments, respectively.

The Company accounts for its financial assets in accordance with Accounting Standard Codification (“ASC”) 820, Fair Value Measurement.  This standard defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements.  The fair value measurement disclosures are grouped into three levels based on valuation factors:

· Level 1 - quoted prices in active markets using identical assets;

· Level 2 - significant other observable inputs, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other observable inputs; and

· Level 3 - significant unobservable inputs.

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The following table summarizes the levels of fair value measurements of the Company’s financial assets:

	Fair Value Measurements
	(in thousands)
	June 30,
	2011		Level 1		Level 2		Level 3
Money market funds	$	170,365	$	170,365	$	—	$	—
Municipal bonds		37,598		—		37,598		—
Total	$	207,963	$	170,365	$	37,598	$	—

	Fair Value Measurements
	(in thousands)
	December 31,
	2010		Level 1		Level 2		Level 3
Money market funds	$	229,938	$	229,938	$	—	$	—
Municipal bonds		43,367		—		43,367		—
Total	$	273,305	$	229,938	$	43,367	$	—

The municipal bond securities valued as Level 2 investments are primarily pre-refunded municipal bonds that are secured by escrow funds containing U.S. Government securities. Valuation techniques used by the Company to measure fair value for these securities during the period consisted primarily of third party pricing services that utilized actual market data such as trades of comparable bond issues, broker/dealer quotations for the same or similar investments in active markets and other observable inputs.

The following table summarizes the Company’s available-for-sale marketable securities as of June 30, 2011 and December 31, 2010:

			Gross		Gross
	Amortized		Unrealized		Unrealized			Estimated
	Cost		Gains		Losses			Fair Value
			(in thousands)
June 30, 2011:
Municipal bonds	$	37,497	$	110	$	(9	)	$	37,598
December 31, 2010:
Municipal bonds	$	43,330	$	63	$	(26	)	$	43,367

The Company utilizes specific identification to account for realized gains and losses recognized on sales of available-for-sale marketable securities.  During the periods ended June 30, 2011 and 2010, the Company had no realized gains or losses recognized on sales of marketable securities.

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As of June 30, 2011, the contractual maturities of the Company’s marketable securities were as follows:

	Amortized Cost		Estimated Fair Value
	(in thousands)
Less than one year	$	20,369	$	20,395
One to five years		17,128		17,203
Total	$	37,497	$	37,598

4. Acquisitions

The Company accounts for its acquisitions in accordance with ASC 805, Business Combinations, which requires allocation of the purchase price to tangible and identifiable intangible assets acquired and liabilities assumed based on the fair value at the date of purchase.  The purchase price in excess of the identifiable assets and liabilities is recorded to goodwill.  All acquisition related costs are expensed as incurred and recorded in operating expenses.  The Company includes operations associated with acquisitions from the date of acquisition forward.

In January 2011, the Company acquired from HumanConcepts, a provider of workforce decision support solutions, ownership of its OrgPlus desktop software product line for small and medium-sized businesses, and its associated customer base, as well as a source code license for a SaaS-based version. OrgPlus facilitates creation, management and communication of detailed organizational charts. The acquisition reflects Insperity’s continued business strategy to expand its human resource services as well as the solutions available to the Company’s current and target clients.  The Company paid $10.8 million upon the closing of the transaction and expects to pay an additional $1.2 million in 2012 based on the terms of the agreement.

5. Stockholders’ Equity

The Company’s Board of Directors (the “Board”) has authorized a program to repurchase shares of the Company’s outstanding common stock from time to time in the open market or directly from stockholders at prevailing market prices based on market conditions and other factors.  During the six months ended June 30, 2011, 119,237 shares were repurchased under the program and 106,407 shares were withheld to satisfy tax withholding obligations for the vesting of restricted stock awards.  The shares related to withholding obligations are not subject to the repurchase program.  As of June 30, 2011, the Company was authorized to repurchase an additional 1,020,156 shares under the program.

The Board declared quarterly dividends of $0.15 and $0.13 per share of common stock in each of the first two quarters of 2011 and 2010, respectively, resulting in a total of $8.0 million and $6.8 million, respectively, in dividend payments made by the Company during the first half of each year.

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6. Net Income per Share

The Company utilizes the two-class method to compute net income per share.  The two-class method allocates a portion of net income to participating securities, which include unvested awards of share-based payments with non-forfeitable rights to receive dividends.  Net income allocated to unvested share-based payments is excluded from net income allocated to common shares.  Basic net income per share is computed by dividing net income allocated to common shares by the weighted average number of common shares outstanding during the period.  Diluted net income per share is computed by dividing net income allocated to common shares by the weighted average number of common shares outstanding during the period, plus the dilutive effect of outstanding stock options.

The following table summarizes the net income allocated to common shares and the basic and diluted shares used in the net income per share computations for the three month and six month periods ended June 30, 2011 and 2010:

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Net income	$	6,741		$	5,118		$	15,527		$	7,417
Less income allocated to participating securities		(199	)		(51	)		(463	)		(214	)
Net income allocated to common shares	$	6,542		$	5,067		$	15,064		$	7,203
Weighted average common shares outstanding		25,726			25,381			25,608			25,231
Incremental shares from assumed conversions of common stock options		101			112			110			102
Adjusted weighted average common shares outstanding		25,827			25,493			25,718			25,333
Potentially dilutive securities not included in weighted average share calculation due to anti-dilutive effect		8			460			4			568

7. Commitments and Contingencies

The Company is a defendant in various lawsuits and claims arising in the normal course of business.  Management believes it has valid defenses in these cases and is defending them vigorously.  While the results of litigation cannot be predicted with certainty, except as set forth below, management believes the final outcome of such litigation will not have a material adverse effect on the Company’s financial position or results of operations.

As a result of a 2001 corporate restructuring, the Company filed for a transfer of its state unemployment tax reserve account with the Employment Development Department of the State of California (“EDD”).  The EDD approved our request for transfer of the reserve account in May 2002 and also notified the Company of its new contribution rates based upon the approved transfer.  In December 2003, the Company received a Notice of Duplicate Accounts and Notification of Assessment (“Notice”) from the EDD.  The Notice stated that the EDD was collapsing the accounts of the Company’s subsidiaries into the account of the entity with the highest unemployment tax rate.  The Notice also retroactively imposed the higher unemployment insurance rate on all of the Company’s California employees for 2003, resulting in an assessment of $5.6 million.  In January 2004, the Company filed petitions with an administrative law judge of the California Unemployment Insurance Appeals Board (“ALJ”) to protest the validity of the Notice, asserting several procedural and substantive defenses.  The Company’s appeal is still pending and no date has been set for a hearing.

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One procedural defense included in the Company’s appeal asserts that EDD failed to meet the statutory requirement related to serving a proper notice within the stipulated time frame and that all of the statutes of limitations concerning EDD’s ability to reassess or modify unemployment tax rates for the periods addressed in the Notice had expired (“Notification Defense”).  During 2010, a California Circuit Court issued a ruling in favor of EDD regarding a dispute involving a taxpayer who made arguments similar to the Company’s Notification Defense. The Supreme Court of California subsequently denied the taxpayer’s petition for review.  The Company received a statement of account from the EDD indicating taxes, penalties and interest due of approximately $8.1 million.  The Company is currently in settlement discussions with EDD.  In the event a mutually agreeable settlement cannot be reached, the Company intends to continue to vigorously assert its defenses, including its Notification Defense, as the facts in the case at issue are not identical to the facts and circumstances of the Company’s dispute.  However, at this time it is not possible to determine the ultimate outcome.

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ITEM 2.  MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS.

You should read the following discussion in conjunction with our Annual Report on Form 10-K for the year ended December 31, 2010, as well as our consolidated financial statements and notes thereto included in this quarterly report on Form 10-Q.

New Accounting Pronouncements

We believe we have implemented the accounting pronouncements with a material impact on our financial statements and do not believe there are any new or pending pronouncements that will materially impact our financial position or results of operations.

Results of Operations

Three Months Ended June 30, 2011 Compared to Three Months Ended June 30, 2010.

The following table presents certain information related to our results of operations for the three months ended June 30, 2011 and 2010.

	Three months ended June 30,
	2011		2010		% Change
	(in thousands, except per share and statistical data)
Revenues (gross billings of $2.731 billion and $2.354 billion, less worksite employee payroll cost of $2.258 billion and $1.942 billion, respectively)	$	472,903	$	412,418		14.7	%
Gross profit		83,841		71,357		17.5	%
Operating expenses		72,441		62,788		15.4	%
Operating income		11,400		8,569		33.0	%
Other income		304		255		19.2	%
Net income		6,741		5,118		31.7	%
Diluted net income per share of common stock		0.25		0.20		25.0	%
Statistical Data:
Average number of worksite employees paid per month		114,656		105,359		8.8	%
Revenues per worksite employee per month(1)	$	1,375	$	1,305		5.4	%
Gross profit per worksite employee per month		244		226		8.0	%
Operating expenses per worksite employee per month		211		199		6.0	%
Operating income per worksite employee per month		33		27		22.2	%
Net income per worksite employee per month		20		16		25.0	%

_________________________

(1) Gross billings of $7,938 and $7,450 per worksite employee per month, less payroll cost of $6,563 and $6,145 per worksite employee per month, respectively.

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Revenues

Our revenues for the second quarter of 2011 increased 14.7% over the 2010 period due to an 8.8% increase in the average number of worksite employees paid per month and a 5.4%, or $70 increase in revenues per worksite employee per month.

By region, our Workforce Optimization revenue change from the second quarter of 2010 and distribution for the quarters ended June 30, 2011 and 2010 were as follows:

	Three months ended June 30,							Three months ended June 30,
	2011		2010		% Change			2011			2010
	(in thousands)							(% of total revenues)
Northeast	$	122,199	$	97,727		25.0	%		26.2	%		23.9	%
Southeast		46,474		44,955		3.4	%		9.9	%		11.0	%
Central		67,997		60,352		12.7	%		14.6	%		14.7	%
Southwest		135,093		125,931		7.3	%		29.0	%		30.8	%
West		94,465		80,188		17.8	%		20.3	%		19.6	%
		466,228		409,153		13.9	%		100.0	%		100.0	%
Adjacent Businesses and other revenue		6,675		3,265		104.4	%
Total revenue	$	472,903	$	412,418		14.7	%

Our growth rate is affected by three primary sources – new client sales, client retention and the net change in existing clients through worksite employee new hires and layoffs.  During the second quarter of 2011, the net change in existing clients, new client sales and client retention all improved as compared to the second quarter of 2010.

Gross Profit

Gross profit for the second quarter of 2011 increased 17.5% over the second quarter of 2010 to $83.8 million.  The average gross profit per worksite employee increased 8.0% to $244 per month in the 2011 period from $226 per month in the 2010 period.  Included in gross profit in 2011 is an $11 contribution from our Adjacent Businesses compared to $5 in the 2010 period, due to acquisitions that closed after the second quarter of 2010.  Our pricing objectives attempt to maintain or improve the gross profit per worksite employee by increasing revenue per worksite employee to match or exceed changes in primary direct costs and operating expenses.

While our revenues increased 5.4% per worksite employee per month, our direct costs, which primarily include payroll taxes, benefits and workers’ compensation expenses, increased 4.8% to $1,131 per worksite employee per month in the second quarter of 2011 versus $1,079 in the second quarter of 2010.

· Benefits costs – The cost of group health insurance and related employee benefits increased $25 per worksite employee per month, or 5.0% on a cost per covered employee basis compared to the second quarter of 2010.  These results were favorably impacted by a decrease in the number of COBRA participants.  The number of participants electing COBRA coverage in the United plan declined from 7.0% in the second quarter of 2010 to 3.9% in the second quarter of 2011.  Historically, the net costs of COBRA claims per enrollee are approximately double the cost of claims associated with active enrollees.  The percentage of worksite employees covered under our health insurance plans was 73.8% in the 2011 period compared to 74.3% in the 2010 period.  Please read Note 2 - “Accounting Policies – Health Insurance Costs” on page 10 for a discussion of our accounting for health insurance costs.

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· Workers’ compensation costs – Workers’ compensation costs increased 4.6%, but decreased $1 per worksite employee per month compared to the second quarter of 2010.  As a percentage of non-bonus payroll cost, workers’ compensation costs were 0.59% in the 2011 period compared to 0.64% in the 2010 period.  During the 2011 period, we recorded reductions in workers’ compensation costs of $2.2 million, or 0.11% of non-bonus payroll costs, for changes in estimated losses related to prior reporting periods, compared to $1.7 million, or 0.09% of non-bonus payroll costs, in the 2010 period.  Please read Note 2 “Accounting Policies – Workers’ Compensation Costs” on page 11 for a discussion of our accounting for workers’ compensation costs.

· Payroll tax costs – Payroll taxes increased 15.0%, or $25 per worksite employee per month compared to the second quarter of 2010, primarily due to the 16.2% increase in payroll costs.  Payroll taxes as a percentage of payroll cost were 7.2% in the 2011 period compared to 7.3% in the 2010 period.

Operating Expenses

The following table presents certain information related to our operating expenses for the three months ended June 30, 2011 and 2010.

	Three months ended June 30,							Three months ended June 30,
	2011		2010		% Change			2011		2010		% Change
	(in thousands)							(per worksite employee per month)
Salaries, wages and payroll  taxes	$	38,467	$	34,505		11.5	%	$	112	$	109		2.8	%
Stock–based compensation		2,556		2,410		6.1	%		7		8		(12.5	)%
General and administrative expenses		17,023		14,634		16.3	%		50		46		8.7	%
Commissions		3,255		2,818		15.5	%		9		9		—
Advertising		7,539		4,698		60.5	%		22		15		46.7	%
Depreciation and amortization		3,601		3,723		(3.3	)%		11		12		(8.3	)%
Total operating expenses	$	72,441	$	62,788		15.4	%	$	211	$	199		6.0	%

Operating expenses increased 15.4% to $72.4 million compared to $62.8 million in the second quarter of 2010, primarily due to $3.1 million related to our rebranding initiative and $2.9 million associated with acquisitions completed in late 2010 and early 2011.  Operating expenses per worksite employee per month increased to $211 in the 2011 period from $199 in the 2010 period.  The components of operating expenses changed as follows:

· Salaries, wages and payroll taxes of corporate and sales staff increased 11.5%, or $3 per worksite employee per month compared to the 2010 period.  This increase was primarily due to a 10.2% rise in headcount, largely related to our adjacent business strategy and the associated acquisitions.

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· Stock-based compensation increased 6.1%, but decreased $1 per worksite employee per month compared to the 2010 period.  The stock-based compensation expense represents amortization of restricted stock awards granted to employees.

· General and administrative expenses increased 16.3%, or $4 per worksite employee per month compared to the second quarter of 2010, primarily due to costs associated with our acquisitions in late 2010 and early 2011, as well as increased travel, consulting and office expenses.

· Commissions expense increased 15.5%, but remained flat on a per worksite employee per month basis compared to the 2010 period.

· Advertising costs increased 60.5%, or $7 per worksite employee per month compared to the 2010 period, primarily due to advertising and business promotions related to the Company’s rebranding initiative.

· Depreciation and amortization expense decreased 3.3%, or $1 per worksite employee per month basis compared to the 2010 period.

Other Income (Expense)

Other income (expense) remained flat at $0.3 million in the second quarter of 2011 and 2010.

Income Tax Expense

Our effective income tax rate was 42.4% in the 2011 period compared to 42.0% in the 2010 period.  Our provision for income taxes differed from the U.S. statutory rate of 35% primarily due to state income taxes and non-deductible expenses.

Operating and Net Income

Operating and net income per worksite employee per month was $33 and $20 in the 2011 period, versus $27 and $16 in the 2010 period.

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Six Months Ended June 30, 2011 Compared to Six Months Ended June 30, 2010.

The following table presents certain information related to our results of operations for the six months ended June 30, 2011 and 2010.

	Six months ended June 30,
	2011		2010		% Change
	(in thousands, except per share and statistical data)
Revenues (gross billings of $5.619 billion and $4.830 billion, less worksite employee payroll cost of $4.610 billion and $3.960 billion, respectively)	$	1,009,284	$	870,080		16.0	%
Gross profit		174,800		144,042		21.4	%
Operating expenses		148,271		131,712		12.6	%
Operating income		26,529		12,330		115.2	%
Other income		588		458		28.4	%
Net income		15,527		7,417		109.3	%
Diluted net income per share of common stock		0.59		0.28		110.7	%
Statistical Data:
Average number of worksite employees paid per month		113,533		104,184		9.0	%
Revenues per worksite employee per month(1)	$	1,482	$	1,392		6.5	%
Gross profit per worksite employee per month		257		230		11.7	%
Operating expenses per worksite employee per month		218		211		3.3	%
Operating income per worksite employee per month		39		20		95.0	%
Net income per worksite employee per month		23		12		91.7	%

_________________________

(1) Gross billings of $8,249 and $7,726 per worksite employee per month, less payroll cost of $6,767 and $6,334 per worksite employee per month, respectively.

Revenues

Our revenues for the six months ended June 30, 2011, increased 16.0% over the 2010 period due to a 9.0% increase in the average number of worksite employees paid per month and a 6.5%, or $90 increase in revenues per worksite employee per month.

By region, our Workforce Optimization revenues compared to the first six months of 2010 and distribution for the six months ended June 30, 2011 and 2010 were as follows:

	Six months ended June 30,							Six months ended June 30,
	2011		2010		% Change			2011			2010
	(in thousands)							(% of total revenues)
Northeast	$	262,944	$	207,259		26.9	%		26.4	%		24.0	%
Southeast		97,849		94,046		4.0	%		9.8	%		10.9	%
Central		146,596		128,694		13.9	%		14.7	%		14.9	%
Southwest		288,843		267,241		8.1	%		29.0	%		30.9	%
West		199,557		166,544		19.8	%		20.1	%		19.3	%
		995,789		863,784		15.3	%		100.0	%		100.0	%
Adjacent Businesses and other revenue		13,495		6,296		114.3	%
Total revenue	$	1,009,284	$	870,080		16.0	%

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Our growth rate is affected by three primary sources – new client sales, client retention and the net change in existing clients through worksite employee new hires and layoffs.  During the first half of 2011, the net change in existing clients, new client sales and client retention all improved as compared to the first half of 2010.

Gross Profit

Gross profit for the first half of 2011 increased 21.4% over the 2010 period to $174.8 million.  The average gross profit per worksite employee increased 11.7% to $257 per month in the 2011 period from $230 per month in the 2010 period.  Included in gross profit in 2011 is an $11 contribution from our Adjacent Businesses compared to $4 in the 2010 period, due to acquisitions that closed after the first half of 2010.  Our pricing objectives attempt to maintain or improve the gross profit per worksite employee by increasing revenue per worksite employee to match or exceed changes in primary direct costs and operating expenses.

While our revenues increased 6.5% per worksite employee per month, our direct costs, which primarily include payroll taxes, benefits and workers’ compensation expenses, increased 5.4% to $1,225 per worksite employee per month in the first half of 2011 versus $1,162 in the first half of 2010.

· Benefits costs – The cost of group health insurance and related employee benefits increased $18 per worksite employee per month, or 3.9% on a cost per covered employee basis compared to the 2010 period.  These results reflect the favorable impact of plan design changes implemented on January 1, 2011, and a decrease in the number of COBRA participants.  The number of participants electing COBRA coverage in the United plan declined from 7.0% in the first half of 2010 to 4.2% in the first half 2011.  Historically, the net costs of COBRA claims per enrollee are approximately double the cost of claims associated with active enrollees.  The percentage of worksite employees covered under our health insurance plans was 74.1% in the 2011 period compared to 74.7% in the 2010 period.  Please read Note 2 - “Accounting Policies – Health Insurance Costs” on page 10 for a discussion of our accounting for health insurance costs.

· Workers’ compensation costs – Workers’ compensation costs increased 9.2%, but remained flat on a per worksite employee per month basis compared to the first six months of 2010.  As a percentage of non-bonus payroll cost, workers’ compensation costs were 0.60% in the 2011 period compared to 0.63% in the 2010 period.  During the 2011 period, we recorded reductions in workers’ compensation costs of $4.0 million, or 0.10% of non-bonus payroll costs, for changes in estimated losses related to prior reporting periods, compared to $3.7 million, or 0.10% of non-bonus payroll costs, in the 2010 period.  Please read Note 2 “Accounting Policies – Workers’ Compensation Costs” on page 11 for a discussion of our accounting for workers’ compensation costs.

· Payroll tax costs – Payroll taxes increased 17.7%, or $42 per worksite employee per month compared to the first half of 2010 primarily due to the 16.4% increase in payroll costs.  Payroll taxes as a percentage of payroll cost were 8.4% in the 2011 period compared to 8.3% in the 2010 period.

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Operating Expenses

The following table presents certain information related to our operating expenses for the six months ended June 30, 2011 and 2010.

	Six months ended June 30,							Six months ended June 30,
	2011		2010		% Change			2011		2010		% Change
	(in thousands)							(per worksite employee per month)
Salaries, wages and payroll  taxes	$	78,064	$	73,692		5.9	%	$	115	$	118		(2.5	)%
Stock–based compensation		4,346		4,178		4.0	%		7		7		—
General and administrative expenses		38,916		32,128		21.1	%		57		51		11.8	%
Commissions		6,351		5,605		13.3	%		9		9		—
Advertising		13,045		8,575		52.1	%		19		14		35.7	%
Depreciation and amortization		7,549		7,534		0.2	%		11		12		(8.3	)%
Total operating expenses	$	148,271	$	131,712		12.6	%	$	218	$	211		3.3	%

Operating expenses increased 12.6% to $148.3 million compared to $131.7 million in the first half of 2010, primarily due to $7.9 million related to our rebranding initiative and $5.8 million associated with acquisitions completed in late 2010 and early 2011.  Operating expenses per worksite employee per month increased to $218 in the 2011 period versus $211 in the 2010 period.  The components of operating expenses changed as follows:

· Salaries, wages and payroll taxes of corporate and sales staff increased 5.9%, but decreased $3 per worksite employee per month compared to the 2010 period.  This increase was primarily due to a 6.8% rise in headcount, largely related to our adjacent business strategy and the associated acquisitions.

· Stock-based compensation increased 4.0%, but remained flat on a per worksite employee per month basis compared to the 2010 period.  The stock-based compensation expense represents amortization of restricted stock awards granted to employees.

· General and administrative expenses increased 21.1%, or $6 per worksite employee per month compared to the first half of 2010, primarily due to $3.5 million in costs associated with the Company’s rebranding initiative and $2.0 million associated with the acquisitions in late 2010 and early 2011.

· Commissions expense increased 13.3%, but remained flat on a per worksite employee per month basis compared to the 2010 period.

· Advertising costs increased 52.1%, or $5 per worksite employee per month compared to the 2010 period, primarily due to $4.4 million in advertising and business promotions related to our rebranding initiative.

· Depreciation and amortization expense increased 0.2%, but decreased $1 on a per worksite employee per month basis compared to the 2010 period.

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Other Income (Expense)

Other income (expense) remained relatively flat in the first half of 2011 compared to the 2010 period.

Income Tax Expense

Our effective income tax rate was 42.7% in the 2011 period compared to 42.0% in the 2010 period.  Our provision for income taxes differed from the U.S. statutory rate of 35% primarily due to state income taxes and non-deductible expenses.

Operating and Net Income

Operating and net income per worksite employee per month was $39 and $23 in the 2011 period, versus $20 and $12 in the 2010 period.

Non-GAAP Financial Measures

Non-bonus payroll cost is a non-GAAP financial measure that excludes the impact of bonus payrolls paid to our worksite employees.  Bonus payroll cost varies from period to period, but has no direct impact to our ultimate workers’ compensation costs under the current program.  As a result, our management refers to non-bonus payroll cost in analyzing, reporting and forecasting our workers’ compensation costs.  Non-GAAP financial measures are not prepared in accordance with GAAP and may be different from non-GAAP financial measures used by other companies.  Non-GAAP financial measures should not be considered as a substitute for, or superior to, measures of financial performance prepared in accordance with GAAP.  We include these non-GAAP financial measures because we believe they are useful to investors in allowing for greater transparency related to the costs incurred under our current workers’ compensation program.  Investors are encouraged to review the reconciliation of the non-GAAP financial measures used to their most directly comparable GAAP financial measures as provided in the table below.

	Three months ended							Six months ended
	June 30,				%			June 30,				%
	2011		2010		Change			2011		2010		Change
	(in thousands, except per worksite employee data)
Payroll cost (GAAP)	$	2,257,602	$	1,942,142		16.2	%	$	4,609,865	$	3,959,675		16.4	%
Less: Bonus payroll cost		164,612		91,984		79.0	%		469,461		321,489		46.0	%
Non-bonus payroll cost	$	2,092,990	$	1,850,158		13.1	%	$	4,140,404	$	3,638,186		13.8	%
Payroll cost per worksite employee (GAAP)	$	6,563	$	6,145		6.8	%	$	6,767	$	6,334		6.8	%
Less: Bonus payroll cost per worksite employee		478		291		64.3	%		689		514		34.0	%
Non-bonus payroll cost per worksite employee	$	6,085	$	5,854		3.9	%	$	6,078	$	5,820		4.4	%

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Liquidity and Capital Resources

We periodically evaluate our liquidity requirements, capital needs and availability of resources in view of, among other things, our expansion plans, acquisition plans and other operating cash needs.  To meet short- and long-term liquidity requirements, including payment of direct and operating expenses and repaying debt, we rely primarily on cash from operations.  However, we have in the past sought, and may in the future seek, to raise additional capital or take other steps to increase or manage our liquidity and capital resources.  We had $302.8 million in cash, cash equivalents and marketable securities at June 30, 2011, of which approximately $83.6 million was payable in early July 2011 for withheld federal and state income taxes, employment taxes and other payroll deductions, and approximately $81.1 million of client prepayments that were payable in July 2011.  At June 30, 2011, we had working capital of $152.2 million compared to $144.5 million at December 31, 2010.  We currently believe that our cash on hand and cash flows from operations will be adequate to meet our liquidity requirements for the remainder of 2011.  We will rely on these same sources, as well as public and private debt or equity financing, to meet our longer-term liquidity and capital needs.

Cash Flows from Operating Activities

Net cash provided by operating activities in 2011 was $54.3 million.  Our primary source of cash from operations is the comprehensive service fee and payroll funding we collect from our clients.  The level of cash and cash equivalents, and thus our reported cash flows from operating activities are significantly impacted by various external and internal factors, which are reflected in part by the changes in our balance sheet accounts.  These include the following:

· Timing of client payments / payrolls – We typically collect our comprehensive service fee, along with the client’s payroll funding, from clients at least one day prior to the payment of worksite employee payrolls and associated payroll taxes.  Therefore, the last business day of a reporting period has a substantial impact on our reporting of operating cash flows.  For example, many worksite employees are paid on Fridays; therefore, operating cash flows decrease in the reporting periods that end on a Friday.  In the period ended June 30, 2011, which ended on a Thursday, client prepayments were $81.1 million and accrued worksite employee payroll was $171.1 million.  In the period ended December 31, 2010, which ended on a Friday, client prepayments were $8.1 million and accrued worksite employee payroll was $109.7 million.

· Workers’ compensation plan funding – Under our workers’ compensation insurance arrangements, we make monthly payments to the carriers comprised of premium costs and funds to be set aside for payment of future claims (“claim funds”).  These pre-determined amounts are stipulated in our agreements with the carriers, and are based primarily on anticipated worksite employee payroll levels and workers’ compensation loss rates during the policy year.  Changes in payroll levels from those that were anticipated in the arrangements can result in changes in the amount of cash payments, which will impact our reporting of operating cash flows.  Our claim funds paid, based upon anticipated worksite employee payroll levels and workers’ compensation loss rates, were $18.2 million in the first half of 2011 and $19.0 million in the first half of 2010.

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However, our estimate of workers’ compensation loss costs was $18.6 million and $15.6 million in 2011 and 2010, respectively.  During 2011 and 2010, we received $9.6 million and $15.6 million, respectively, for the return of excess claim funds related to the workers’ compensation program, which resulted in an increase to working capital.

· Medical plan funding – Our health care contract with United establishes participant cash funding rates 90 days in advance of the beginning of a reporting quarter.  Therefore, changes in the participation level of the United plan have a direct impact on our operating cash flows.  In addition, changes to the funding rates, which are solely determined by United based primarily upon recent claim history and anticipated cost trends, also have a significant impact on our operating cash flows.  Since inception of the United plan, premiums owed and cash funded to United has exceeded Plan Costs, resulting in a $29.4 million surplus, $20.4 million of which is reflected as a current asset, and $9.0 million of which is reflected as a long-term asset on our Consolidated Balance Sheet at June 30, 2011.  The premiums owed to United at June 30, 2011, were $9.1 million, which is included in accrued health insurance costs, a current liability, on our Consolidated Balance Sheets.

· Operating results – Our net income has a significant impact on our operating cash flows.  Our net income increased 109.3% to $15.5 million in the six months ended June 30, 2011, compared to $7.4 million in the six months ended June 30, 2010.  Please read Results of Operations – Six Months Ended June 30, 2011 Compared to Six Months Ended June 30, 2010 on page 22.

Cash Flows from Investing Activities

Net cash flows used in investing activities were $15.0 million for the six months ended June 30, 2011, due to $8.4 million in capital expenditures primarily related to our technology infrastructure and our $10.8 million acquisition of the OrgPlus software from HumanConcepts.  See Note 4, “Acquisitions” on page 15 for additional information.

Cash Flows from Financing Activities

Net cash flows used in financing activities were $8.9 million for the six months ended June 30, 2011, including $8.0 million in dividends paid and $6.6 million in stock repurchases.

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ITEM 3.  QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK.

We are primarily exposed to market risks from fluctuations in interest rates and the effects of those fluctuations on the market values of our cash equivalent short-term investments.   Our cash equivalent short-term investments consist primarily of overnight investments and money market funds, which are not significantly exposed to interest rate risk, except to the extent that changes in interest rates will ultimately affect the amount of interest income earned on these investments.

We attempt to limit our exposure to interest rate risk primarily through diversification and low investment turnover.  Our investment policy is designed to maximize after-tax interest income while preserving our principal investment.

ITEM 4.  CONTROLS AND PROCEDURES.

In accordance with the Securities Exchange Act of 1934 Rules 13a-15 and 15d-15, we carried out an evaluation, under the supervision and with the participation of management, including our Chief Executive Officer and Chief Financial Officer, of the effectiveness of our disclosure controls and procedures as of the end of the period covered by this report.  Based on that evaluation, our Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of June 30, 2011.

There has been no change in our internal controls over financial reporting that occurred during the three months ended June 30, 2011, that has materially affected, or is reasonably likely to materially affect, our internal controls over financial reporting.

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PART II

ITEM 1.  LEGAL PROCEEDINGS.

Please read Note 7 to our financial statements, which is incorporated herein by reference.

ITEM 1A.  RISK FACTORS

Forward-Looking Statements

The statements contained herein that are not historical facts are forward-looking statements within the meaning of the federal securities laws (Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934). You can identify such forward-looking statements by the words “expects,” “intends,” “plans,” “projects,” “believes,” “estimates,” “likely,” “possibly,” “probably,” “goal,” “opportunity,” “objective,” “target,” “assume,” “outlook,” “guidance,” “predicts,” “appears,” “indicator” and similar expressions. Forward-looking statements involve a number of risks and uncertainties. In the normal course of business, Insperity, Inc., in an effort to help keep our stockholders and the public informed about our operations, may from time to time issue such forward-looking statements, either orally or in writing. Generally, these statements relate to business plans or strategies, projected or anticipated benefits or other consequences of such plans or strategies, or projections involving anticipated revenues, earnings, unit growth, profit per worksite employee, pricing, operating expenses or other aspects of operating results. We base the forward-looking statements on our expectations, estimates and projections at the time such statements are made. These statements are not guarantees of future performance and involve risks and uncertainties that we cannot predict. In addition, we have based many of these forward-looking statements on assumptions about future events that may prove to be inaccurate. Therefore, the actual results of the future events described in such forward-looking statements could differ materially from those stated in such forward-looking statements. Among the factors that could cause actual results to differ materially are: (i) continued effects of the economic recession and general economic conditions; (ii) regulatory and tax developments and possible adverse application of various federal, state and local regulations; (iii) the ability to secure competitive replacement contracts for health insurance and workers’ compensation contracts at expiration of current contracts; (iv) increases in health insurance costs and workers’ compensation rates and underlying claims trends, health care reform, financial solvency of workers’ compensation carriers and other insurers, state unemployment tax rates, liabilities for employee and client actions or payroll-related claims; (v) failure to manage growth of our operations and the effectiveness of our sales and marketing efforts; (vi) changes in the competitive environment in the PEO industry, including the entrance of new competitors and our ability to renew or replace client companies; (vii) our liability for worksite employee payroll, payroll taxes and benefits costs; (viii) our liability for disclosure of sensitive or private information; (ix) our ability to integrate or realize expected return on our Adjacent Business Strategy, including acquisitions; and (x) an adverse final judgment or settlement of claims against Insperity. These factors are discussed in further detail in our 2010 Annual Report on Form 10-K under “Factors That May Affect Future Results and the Market Price of Common Stock” on page 17, and elsewhere in this report. Any of these factors, or a combination of such factors, could materially affect the results of our operations and whether forward-looking statements we make ultimately prove to be accurate.

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There have been no material changes in the risk factors disclosed pursuant to Item 1A of our Annual Report on Form 10-K for the year ended December 31, 2010.

ITEM 2.  UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS

The following table provides information about purchases by Insperity during the three months ended June 30, 2011, of equity securities that are registered by Insperity pursuant to Section 12 of the Exchange Act:

Period	Total Number of Shares Purchased			Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Program(1)		Maximum Number of Shares that may yet be Purchased under the Program(1)
04/01/2011 – 04/30/2011		265	(2)	$	29.70		12,360,607		1,139,393
05/01/2011 – 05/31/2011		280	(2)		30.29		12,360,607		1,139,393
06/01/2011 – 06/30/2011		119,782	(1)(2)		29.50		12,479,844		1,020,156
Total		120,327		$	29.50		12,479,844		1,020,156

_______________

(1) Our Board of Directors has approved a repurchase program of Insperity common stock.  During the three months ended June 30, 2011, 119,237 shares were repurchased under the program and 1,090 shares were withheld to satisfy tax withholding obligations for the vesting of restricted stock awards.  As of June 30, 2011, the Company was authorized to repurchase an additional 1,020,156 shares under the program. Unless terminated earlier by resolution of the board of directors, the repurchase program will expire when we have repurchased all shares authorized for repurchase under the repurchase program.

(2) These shares include shares of restricted stock that were withheld to satisfy tax-withholding obligations arising in conjunction with the vesting of restricted stock.  The required withholding is calculated using the closing sales price reported by the New York Stock Exchange on the date prior to the applicable vesting date.  These shares are not subject to the repurchase program described above.

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ITEM 6.  EXHIBITS

(a) List of exhibits.

31.1	*	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
31.2	*	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.
32.1	*	Certification of Chief Executive Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
32.2	*	Certification of Chief Financial Officer pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.
101.INS	**	XBRL Instance Document.(1)
101.SCH	**	XBRL Taxonomy Extension Schema Document.
101.DEF	**	XBRL Extension Definition Document.

__________

* Filed with this report.

** Filed electronically with this report.

(1) Attached as exhibit 101 to this report are the following documents formatted in XBRL (Extensible Business Reporting Language): (i) the Consolidated Statements of Operations for the six month and three month periods ended June 30, 2011 and 2010; (ii) the Consolidated Balance Sheets at June 30, 2011 and December 31, 2010; (iii) the Consolidated Statements of Cash Flows for the periods ended June 30, 2011 and 2010 and (iv) Notes to the Consolidated Financial Statements.  Users of this data are advised pursuant to Rule 406T of Regulation S-T this interactive data file is deemed not filed or part of a registration statement or prospectus for purposes of Section 11 or 12 of the Securities Act of 1933, additionally the data is deemed not filed for purposes of Section 18 of the Securities Exchange Act of 1934, and is not subject to liability under these sections.

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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.

	Insperity, Inc.
Date:  August 1, 2011	By:	/s/ Douglas S. Sharp
		Douglas S. Sharp
		Senior Vice President of Finance,
		Chief Financial Officer and Treasurer
		(Principal Financial and Duly Authorized Officer)

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EX-31.1

Exhibit 31.1

CERTIFICATION

I, Paul J. Sarvadi, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Administaff, 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(s) 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 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(s) 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 the 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.

Date:	August 1, 2011
		/s/ Paul J. Sarvadi
		Paul J. Sarvadi
		Chairman of the Board and Chief Executive Officer

EX-31.2

Exhibit 31.2

CERTIFICATION

I, Douglas S. Sharp, certify that:

1. I have reviewed this quarterly report on Form 10-Q of Administaff, 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(s) 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 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(s) 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 the 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.

Date:	August 1, 2011
		/s/ Douglas S. Sharp
		Douglas S. Sharp
		Senior Vice President of Finance,
		Chief Financial Officer and Treasurer

EX-32.1

Exhibit 32.1

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Administaff, Inc. (the “Company”) on Form 10-Q for the period ending June 30, 2011, (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, Paul J. Sarvadi, Chairman of the Board and Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

1.           The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.           The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

     /s/ Paul J. Sarvadi

Paul J. Sarvadi

Chairman of the Board and Chief Executive Officer

August 1, 2011

EX-32.2

Exhibit 32.2

CERTIFICATION PURSUANT TO

18 U.S.C. SECTION 1350,

AS ADOPTED PURSUANT TO SECTION 906

OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Quarterly Report of Administaff, Inc. (the “Company”) on Form 10-Q for the period ending June 30, 2011, (the “Report”), as filed with the Securities and Exchange Commission on the date hereof, I, Douglas S. Sharp, Senior Vice President of Finance, Chief Financial Officer and Treasurer of the Company, certify, pursuant to 18 U.S.C. §1350, as adopted pursuant to §906 of the Sarbanes-Oxley Act of 2002, to the best of my knowledge, that:

1.            The Report fully complies with the requirements of section 13(a) or 15(d) of the Securities Exchange Act of 1934, as amended; and

2.            The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

/s/ Douglas S. Sharp

Douglas S. Sharp

Senior Vice President of Finance,

Chief Financial Officer and Treasurer

August 1, 2011

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CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (USD $) In Thousands, except Per Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Revenues (gross billings of $2.731 billion $2.354 billion, $5.619 billion and $4.830 billion, less worksite employee payroll cost of $2.258 billion, $1.942 billion, $4.610 billion and $3.960 billion, respectively)	$ 472,903	$ 412,418	$ 1,009,284	$ 870,080
Direct costs:
Payroll taxes, benefits and workers' compensation costs	389,062	341,061	834,484	726,038
Gross profit	83,841	71,357	174,800	144,042
Operating expenses:
Salaries, wages and payroll taxes	38,467	34,505	78,064	73,692
Stock-based compensation	2,556	2,410	4,346	4,178
General and administrative expenses	17,023	14,634	38,916	32,128
Commissions	3,255	2,818	6,351	5,605
Advertising	7,539	4,698	13,045	8,575
Depreciation and amortization	3,601	3,723	7,549	7,534
Total Operating Expenses	72,441	62,788	148,271	131,712
Operating income	11,400	8,569	26,529	12,330
Other income (expense):
Interest income	304	255	588	458
Income before income tax expense	11,704	8,824	27,117	12,788
Income tax expense	4,963	3,706	11,590	5,371
Net income	6,741	5,118	15,527	7,417
Less net income allocated to participating securities	(199)	(51)	(463)	(214)
Net income allocated to common shares	$ 6,542	$ 5,067	$ 15,064	$ 7,203
Basic net income per share of common stock (in dollars per share)	$ 0.25	$ 0.20	$ 0.59	$ 0.29
Diluted net income per share of common stock (in dollars per share)	$ 0.25	$ 0.20	$ 0.59	$ 0.28

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CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) (Parenthetical) (USD $) In Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
CONSOLIDATED STATEMENTS OF OPERATIONS (Unaudited) [Abstract]
Gross billings	$ 2,731	$ 2,354	$ 5,619	$ 4,830
Worksite employee payroll cost	$ 2,258	$ 1,942	$ 4,610	$ 3,960

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Net Income Per Share (Details) (USD $) In Thousands, except Share data	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Net Income per Share [Abstract]
Net income	$ 6,741	$ 5,118	$ 15,527	$ 7,417
Less income allocated to participating securities	(199)	(51)	(463)	(214)
Net income allocated to common shares	$ 6,542	$ 5,067	$ 15,064	$ 7,203
Weighted average common shares outstanding	25,726	25,381	25,608	25,231
Incremental shares from assumed conversions of common stock options	101	112	110	102
Adjusted weighted average common shares outstanding	25,827	25,493	25,718	25,333
Potentially dilutive securities not included in weighted average share calculation due to anti-dilutive effect	8	460	4	568

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Document And Entity Information (USD $) In Millions, except Share data	6 Months Ended
	Jun. 30, 2011	Jul. 25, 2011	Jun. 30, 2010
Entity Registrant Name	INSPERITY, INC.
Entity Central Index Key	0001000753
Current Fiscal Year End Date	--12-31
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Filer Category	Large Accelerated Filer
Entity Public Float			$ 547
Entity Common Stock, Shares Outstanding		26,466,410
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jun. 30, 2011

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Net Income Per Share

6 Months Ended

Jun. 30, 2011

Earnings Per Share [Abstract]

Net Income Per Share

6. Net Income per Share

The Company utilizes the two-class method to compute net income per share.  The two-class method allocates a portion of net income to participating securities, which include unvested awards of share-based payments with non-forfeitable rights to receive dividends.  Net income allocated to unvested share-based payments is excluded from net income allocated to common shares.  Basic net income per share is computed by dividing net income allocated to common shares by the weighted average number of common shares outstanding during the period.  Diluted net income per share is computed by dividing net income allocated to common shares by the weighted average number of common shares outstanding during the period, plus the dilutive effect of outstanding stock options.

The following table summarizes the net income allocated to common shares and the basic and diluted shares used in the net income per share computations for the three month and six month periods ended June 30, 2011 and 2010:

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Net income	$	6,741		$	5,118		$	15,527		$	7,417
Less income allocated to participating securities		(199	)		(51	)		(463	)		(214	)
Net income allocated to common shares	$	6,542		$	5,067		$	15,064		$	7,203
Weighted average common shares outstanding		25,726			25,381			25,608			25,231
Incremental shares from assumed conversions of common stock options		101			112			110			102
Adjusted weighted average common shares outstanding		25,827			25,493			25,718			25,333
Potentially dilutive securities not included in weighted average share calculation due to anti-dilutive effect		8			460			4			568

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Net Income Per Share (Tables)

6 Months Ended

Jun. 30, 2011

Earnings Per Share [Abstract]

Summary of the net income allocated to common shares and the basic and diluted shares used in the net income per share computations

The following table summarizes the net income allocated to common shares and the basic and diluted shares used in the net income per share computations for the three month and six month periods ended June 30, 2011 and 2010:

	Three Months Ended June 30,						Six Months Ended June 30,
	2011			2010			2011			2010
Net income	$	6,741		$	5,118		$	15,527		$	7,417
Less income allocated to participating securities		(199	)		(51	)		(463	)		(214	)
Net income allocated to common shares	$	6,542		$	5,067		$	15,064		$	7,203
Weighted average common shares outstanding		25,726			25,381			25,608			25,231
Incremental shares from assumed conversions of common stock options		101			112			110			102
Adjusted weighted average common shares outstanding		25,827			25,493			25,718			25,333
Potentially dilutive securities not included in weighted average share calculation due to anti-dilutive effect		8			460			4			568

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Accounting Policies

6 Months Ended

Jun. 30, 2011

Accounting Policies [Abstract]

Accounting Policies

2. Accounting Policies

Health Insurance Costs

The Company provides group health insurance coverage to its worksite employees through a national network of carriers including UnitedHealthcare (“United”), PacifiCare, Kaiser Permanente, Blue Shield of California, Hawaii Medical Service Association, Unity Health Plans and Tufts, all of which provide fully insured policies or service contracts.

The policy with United provides the majority of the Company's health insurance coverage.  As a result of certain contractual terms, the Company has accounted for this plan since its inception using a partially self-funded insurance accounting model.  Accordingly, Insperity records the costs of the United plan, including an estimate of the incurred claims, taxes and administrative fees (collectively the “Plan Costs”) as benefits expense in the Consolidated Statements of Operations.  The estimated incurred claims are based upon: (i) the level of claims processed during the quarter; (ii) estimated completion rates based upon recent claim development patterns under the plan; and (iii) the number of participants in the plan, including both active and COBRA enrollees.  Each reporting period, changes in the estimated ultimate costs resulting from claim trends, plan design and migration, participant demographics and other factors are incorporated into the benefits costs.

Additionally, since the plan's inception, under the terms of the contract, United establishes cash funding rates 90 days in advance of the beginning of a reporting quarter.  If the Plan Costs for a reporting quarter are greater than the premiums paid and owed to United, a deficit in the plan would be incurred and a liability for the excess costs would be accrued in the Company's Consolidated Balance Sheet.  On the other hand, if the Plan Costs for the reporting quarter are less than the premiums paid and owed to United, a surplus in the plan would be incurred and the Company would record an asset for the excess premiums in its Consolidated Balance Sheet.  The terms of the arrangement require the Company to maintain an accumulated cash surplus in the plan of $9.0 million, which is reported as long-term prepaid insurance.  In addition, United requires a deposit equal to approximately one day of claims funding activity, which was $2.6 million as of June 30, 2011, and is reported as a long-term asset.  As of June 30, 2011, Plan Costs were less than the net premiums paid and owed to United by $29.4 million.  As this amount is in excess of the agreed-upon $9.0 million surplus maintenance level, the $20.4 million balance is included in prepaid insurance, a current asset, in the Company's Consolidated Balance Sheet.  The premiums owed to United at June 30, 2011 were $9.1 million, which is included in accrued health insurance costs, a current liability in the Company's Consolidated Balance Sheet.

Workers' Compensation Costs

The Company's workers' compensation coverage has been provided through an arrangement with the ACE Group of Companies (“the ACE Program”) since 2007.  The ACE Program is fully insured in that ACE has the responsibility to pay all claims incurred regardless of whether the Company satisfies its responsibilities.  Through September 30, 2010, the Company bore the economic burden for the first $1 million layer of claims per occurrence and the insurance carrier was and remains responsible for the economic burden for all claims in excess of such first $1 million layer.

Effective for the ACE Program year beginning on October 1, 2010, in addition to the Company bearing the economic burden for the first $1 million layer of claims per occurrence, the Company will also bear the economic burden for those claims exceeding $1 million, up to a maximum aggregate amount of $5 million per policy year.

Because the Company bears the economic burden for claims up to the levels noted above, such claims, which are the primary component of the Company's workers' compensation costs, are recorded in the period incurred.  Workers' compensation insurance includes ongoing health care and indemnity coverage whereby claims are paid over numerous years following the date of injury.  Accordingly, the accrual of related incurred costs in each reporting period includes estimates, which take into account the ongoing development of claims and therefore requires a significant level of judgment.

The Company employs a third party actuary to estimate its loss development rate, which is primarily based upon the nature of worksite employees' job responsibilities, the location of worksite employees, the historical frequency and severity of workers' compensation claims, and an estimate of future cost trends.  Each reporting period, changes in the actuarial assumptions resulting from changes in actual claims experience and other trends are incorporated into the Company's workers' compensation claims cost estimates.  During the six months ended June 30, 2011 and 2010, Insperity reduced accrued workers' compensation costs by $4.0 million and $3.7 million, respectively, for changes in estimated losses related to prior reporting periods.  Workers' compensation cost estimates are discounted to present value at a rate based upon the U.S. Treasury rates that correspond with the weighted average estimated claim payout period (the average discount rates utilized in 2011 and 2010 were 1.3% and 1.8%, respectively) and are accreted over the estimated claim payment period and included as a component of direct costs in the Company's Consolidated Statements of Operations.

The following table provides the activity and balances related to incurred but not paid workers' compensation claims for the six months ended June 30, 2011 and 2010:

	2011			2010
	(in thousands)
Beginning balance, January 1,	$	96,934		$	88,450
Accrued claims		19,523			16,587
Present value discount		(898	)		(1,036	)
Paid claims		(14,493	)		(11,783	)
Ending balance	$	101,066		$	92,218
Current portion of accrued claims	$	41,331		$	37,744
Long-term portion of accrued claims		59,735			54,474
	$	101,066		$	92,218

The current portion of accrued workers' compensation costs on the Consolidated Balance Sheet at June 30, 2011 includes $1.6 million of workers' compensation administrative fees.

At the beginning of each policy period, the insurance carrier establishes monthly funding requirements comprised of premium costs and funds to be set aside for payment of future claims (“claim funds”).  The level of claim funds is primarily based upon anticipated worksite employee payroll levels and expected workers' compensation loss rates, as determined by the insurance carrier.  Monies funded into the program for incurred claims expected to be paid within one year are recorded as restricted cash, a short-term asset, while the remainder of claim funds are included in deposits, a long-term asset in the Company's Consolidated Balance Sheets.  In the first half of 2011 and 2010, the Company received $9.6 million and $15.6 million, respectively, for the return of excess claim funds related to the ACE Program, which reduced deposits.  As of June 30, 2011, the Company had restricted cash of $41.3 million and deposits of $45.7 million.

The Company's estimate of incurred claim costs expected to be paid within one year are recorded as accrued workers' compensation costs and included in short-term liabilities, while its estimate of incurred claim costs expected to be paid beyond one year are included in long-term liabilities on the Company's Consolidated Balance Sheets.

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Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2011

Accounting Policies [Abstract]

Health Insurance Costs

Health Insurance Costs

The Company provides group health insurance coverage to its worksite employees through a national network of carriers including UnitedHealthcare (“United”), PacifiCare, Kaiser Permanente, Blue Shield of California, Hawaii Medical Service Association, Unity Health Plans and Tufts, all of which provide fully insured policies or service contracts.

The policy with United provides the majority of the Company's health insurance coverage.  As a result of certain contractual terms, the Company has accounted for this plan since its inception using a partially self-funded insurance accounting model.  Accordingly, Insperity records the costs of the United plan, including an estimate of the incurred claims, taxes and administrative fees (collectively the “Plan Costs”) as benefits expense in the Consolidated Statements of Operations.  The estimated incurred claims are based upon: (i) the level of claims processed during the quarter; (ii) estimated completion rates based upon recent claim development patterns under the plan; and (iii) the number of participants in the plan, including both active and COBRA enrollees.  Each reporting period, changes in the estimated ultimate costs resulting from claim trends, plan design and migration, participant demographics and other factors are incorporated into the benefits costs.

Additionally, since the plan's inception, under the terms of the contract, United establishes cash funding rates 90 days in advance of the beginning of a reporting quarter.  If the Plan Costs for a reporting quarter are greater than the premiums paid and owed to United, a deficit in the plan would be incurred and a liability for the excess costs would be accrued in the Company's Consolidated Balance Sheet.  On the other hand, if the Plan Costs for the reporting quarter are less than the premiums paid and owed to United, a surplus in the plan would be incurred and the Company would record an asset for the excess premiums in its Consolidated Balance Sheet.  The terms of the arrangement require the Company to maintain an accumulated cash surplus in the plan of $9.0 million, which is reported as long-term prepaid insurance.  In addition, United requires a deposit equal to approximately one day of claims funding activity, which was $2.6 million as of June 30, 2011, and is reported as a long-term asset.  As of June 30, 2011, Plan Costs were less than the net premiums paid and owed to United by $29.4 million.  As this amount is in excess of the agreed-upon $9.0 million surplus maintenance level, the $20.4 million balance is included in prepaid insurance, a current asset, in the Company's Consolidated Balance Sheet.  The premiums owed to United at June 30, 2011 were $9.1 million, which is included in accrued health insurance costs, a current liability in the Company's Consolidated Balance Sheet.

Workers' Compensation Costs

Workers' Compensation Costs

The Company's workers' compensation coverage has been provided through an arrangement with the ACE Group of Companies (“the ACE Program”) since 2007.  The ACE Program is fully insured in that ACE has the responsibility to pay all claims incurred regardless of whether the Company satisfies its responsibilities.  Through September 30, 2010, the Company bore the economic burden for the first $1 million layer of claims per occurrence and the insurance carrier was and remains responsible for the economic burden for all claims in excess of such first $1 million layer.

Effective for the ACE Program year beginning on October 1, 2010, in addition to the Company bearing the economic burden for the first $1 million layer of claims per occurrence, the Company will also bear the economic burden for those claims exceeding $1 million, up to a maximum aggregate amount of $5 million per policy year.

Because the Company bears the economic burden for claims up to the levels noted above, such claims, which are the primary component of the Company's workers' compensation costs, are recorded in the period incurred.  Workers' compensation insurance includes ongoing health care and indemnity coverage whereby claims are paid over numerous years following the date of injury.  Accordingly, the accrual of related incurred costs in each reporting period includes estimates, which take into account the ongoing development of claims and therefore requires a significant level of judgment.

The Company employs a third party actuary to estimate its loss development rate, which is primarily based upon the nature of worksite employees' job responsibilities, the location of worksite employees, the historical frequency and severity of workers' compensation claims, and an estimate of future cost trends.  Each reporting period, changes in the actuarial assumptions resulting from changes in actual claims experience and other trends are incorporated into the Company's workers' compensation claims cost estimates.  During the six months ended June 30, 2011 and 2010, Insperity reduced accrued workers' compensation costs by $4.0 million and $3.7 million, respectively, for changes in estimated losses related to prior reporting periods.  Workers' compensation cost estimates are discounted to present value at a rate based upon the U.S. Treasury rates that correspond with the weighted average estimated claim payout period (the average discount rates utilized in 2011 and 2010 were 1.3% and 1.8%, respectively) and are accreted over the estimated claim payment period and included as a component of direct costs in the Company's Consolidated Statements of Operations.

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Accounting Policies (Details) (USD $)	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Dec. 31, 2010
Health Insurance Costs [Abstract]
Number of days in advance of the beginning of a reporting quarter United establishes cash funding rates (in days)	90
Incurred but not paid workers' compensation liabilities
Beginning balance	$ 96,934,000	$ 88,450,000
Accrued claims	19,523,000	16,587,000
Present value discount	(898,000)	(1,036,000)
Paid claims	(14,493,000)	(11,783,000)
Ending balance	101,066,000	92,218,000
Current portion of accrued claims	41,331,000	37,744,000
Long-term portion of accrued claims	59,735,000	54,474,000	55,730,000
Required accumulated cash surplus	9,000,000
Required deposit equal to approximately one day of claims funding activity	2,640,000		2,640,000
Amount which Plan Costs were less than the net premiums paid and owed	29,400,000
Prepaid health insurance, current	20,400,000
Premiums owed to United	9,100,000
Workers' Compensation Costs [Abstract]
Company's maximum economic burden for the first layer of claims per occurrence	1,000,000
Company's maximum aggregate economic burden for claims in excess of $1 million per policy year	5,000,000
Reduction in accrued workers' compensation costs for changes in estimated losses	4,000,000	3,700,000
U.S. Treasury rates that correspond with the weighted average estimated claim payout period (in hundredths)	1.30%	1.80%
Workers' compensation administrative fees accrued	1,600,000
Excess claim funds related to the ACE Program	9,600,000	15,600,000
Restricted cash - workers' compensation	41,331,000		41,204,000
Deposits - workers' compensation	$ 45,724,000		$ 51,731,000

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Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2011

Accounting Policies [Abstract]

Activity and balances related to incurred but not paid workers' compensation claims

The following table provides the activity and balances related to incurred but not paid workers' compensation claims for the six months ended June 30, 2011 and 2010:

	2011			2010
	(in thousands)
Beginning balance, January 1,	$	96,934		$	88,450
Accrued claims		19,523			16,587
Present value discount		(898	)		(1,036	)
Paid claims		(14,493	)		(11,783	)
Ending balance	$	101,066		$	92,218
Current portion of accrued claims	$	41,331		$	37,744
Long-term portion of accrued claims		59,735			54,474
	$	101,066		$	92,218

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Commitments and Contingencies

6 Months Ended

Jun. 30, 2011

Commitments and Contingencies [Abstract]

Commitments and Contingencies

7. Commitments and Contingencies

The Company is a defendant in various lawsuits and claims arising in the normal course of business.  Management believes it has valid defenses in these cases and is defending them vigorously.  While the results of litigation cannot be predicted with certainty, except as set forth below, management believes the final outcome of such litigation will not have a material adverse effect on the Company's financial position or results of operations.

As a result of a 2001 corporate restructuring, the Company filed for a transfer of its state unemployment tax reserve account with the Employment Development Department of the State of California (“EDD”).  The EDD approved our request for transfer of the reserve account in May 2002 and also notified the Company of its new contribution rates based upon the approved transfer.  In December 2003, the Company received a Notice of Duplicate Accounts and Notification of Assessment (“Notice”) from the EDD.  The Notice stated that the EDD was collapsing the accounts of the Company's subsidiaries into the account of the entity with the highest unemployment tax rate.  The Notice also retroactively imposed the higher unemployment insurance rate on all of the Company's California employees for 2003, resulting in an assessment of $5.6 million.  In January 2004, the Company filed petitions with an administrative law judge of the California Unemployment Insurance Appeals Board (“ALJ”) to protest the validity of the Notice, asserting several procedural and substantive defenses.  The Company's appeal is still pending and no date has been set for a hearing.

One procedural defense included in the Company's appeal asserts that EDD failed to meet the statutory requirement related to serving a proper notice within the stipulated time frame and that all of the statutes of limitations concerning EDD's ability to reassess or modify unemployment tax rates for the periods addressed in the Notice had expired (“Notification Defense”).  During 2010, a California Circuit Court issued a ruling in favor of EDD regarding a dispute involving a taxpayer who made arguments similar to the Company's Notification Defense. The Supreme Court of California subsequently denied the taxpayer's petition for review.  The Company received a statement of account from the EDD indicating taxes, penalties and interest due of approximately $8.1 million.  The Company is currently in settlement discussions with EDD.  In the event a mutually agreeable settlement cannot be reached, the Company intends to continue to vigorously assert its defenses, including its Notification Defense, as the facts in the case at issue are not identical to the facts and circumstances of the Company's dispute.  However, at this time it is not possible to determine the ultimate outcome.

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CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010
Cash flows from operating activities:
Net income	$ 15,527	$ 7,417
Adjustments to reconcile net income to net cash provided by (used in) operating activities:
Depreciation and amortization	7,546	7,567
Amortization of marketable securities	985	640
Stock-based compensation	4,346	4,178
Deferred income taxes	1,379	4,573
Changes in operating assets and liabilities, net of effects from acquisitions:
Restricted cash	(127)	(1,308)
Accounts receivable	7,018	(54,450)
Prepaid insurance	455	(7,435)
Other current assets	(1,217)	(1,789)
Other assets	5,909	9,768
Accounts payable	(885)	(530)
Payroll taxes and other payroll deductions payable	(46,886)	(49,494)
Accrued worksite employee payroll expense	61,379	59,549
Accrued health insurance costs	(2,994)	4,555
Accrued workers' compensation costs	4,850	4,484
Accrued corporate payroll, commissions and other accrued liabilities	(3,537)	3,506
Income taxes payable/receivable	562	(1,439)
Total adjustments	38,783	(17,625)
Net cash provided by (used in) operating activities	54,310	(10,208)
Cash flows from investing activities:
Marketable securities purchases	(13,903)	(47,787)
Marketable securities proceeds from dispositions	17,387	2,415
Marketable securities proceeds from maturities	1,365	9,863
Cash exchanged for acquisitions	(11,450)	(5,648)
Property and equipment	(8,404)	(2,430)
Net cash used in investing activities	(15,005)	(43,587)
Cash flows from financing activities:
Purchase of treasury stock	(6,639)	(2,387)
Dividends paid	(7,953)	(6,775)
Proceeds from the exercise of stock options	3,283	4,517
Income tax benefit from stock-based compensation	1,880	295
Other	486	442
Net cash used in financing activities	(8,943)	(3,908)
Net increase (decrease) in cash and cash equivalents	30,362	(57,703)
Cash and cash equivalents at beginning of period	234,829	227,085
Cash and cash equivalents at end of period	$ 265,191	$ 169,382

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Cash, Cash Equivalents and Marketable Securities

6 Months Ended

Jun. 30, 2011

Cash, Cash Equivalents and Marketable Securities [Abstract]

Cash, Cash Equivalents and Marketable Securities

3. Cash, Cash Equivalents and Marketable Securities

The following table summarizes the Company's investments in cash equivalents and marketable securities held by investment managers and overnight investments:

	June 30,			December 31,
	2011			2010
	(in thousands)
Overnight Holdings
Money market funds (cash equivalents)	$	82,413		$	157,680
Investment Holdings
Money market funds (cash equivalents)		87,952			72,258
Marketable securities		37,598			43,367
		207,963			273,305
Cash held in demand accounts		105,672			31,295
Outstanding checks		(10,846	)		(26,404	)
Total cash, cash equivalents and marketable securities	$	302,789		$	278,196
Cash and cash equivalents	$	265,191		$	234,829
Marketable securities		37,598			43,367
	$	302,789		$	278,196

The Company's cash and overnight holdings fluctuate based on the timing of the client's payroll processing cycle.  Included in the cash balance as of June 30, 2011 and December 31, 2010, are $83.6 million and $128.8 million, respectively, in withholdings associated with federal and state income taxes, employment taxes and other payroll deductions, as well as $81.1 million and $8.1 million in client prepayments, respectively.

The Company accounts for its financial assets in accordance with Accounting Standard Codification (“ASC”) 820, Fair Value Measurement.  This standard defines fair value, establishes a framework for measuring fair value and expands disclosures about fair value measurements.  The fair value measurement disclosures are grouped into three levels based on valuation factors:

· Level 1 - quoted prices in active markets using identical assets;

· Level 2 - significant other observable inputs, such as quoted prices for similar assets or liabilities, quoted prices in markets that are not active, or other observable inputs; and

· Level 3 - significant unobservable inputs.

The following table summarizes the levels of fair value measurements of the Company's financial assets:

	Fair Value Measurements
	(in thousands)
	June 30,
	2011		Level 1		Level 2		Level 3
Money market funds	$	170,365	$	170,365	$	-	$	-
Municipal bonds		37,598		-		37,598		-
Total	$	207,963	$	170,365	$	37,598	$	-

	Fair Value Measurements
	(in thousands)
	December 31,
	2010		Level 1		Level 2		Level 3
Money market funds	$	229,938	$	229,938	$	-	$	-
Municipal bonds		43,367		-		43,367		-
Total	$	273,305	$	229,938	$	43,367	$	-

The municipal bond securities valued as Level 2 investments are primarily pre-refunded municipal bonds that are secured by escrow funds containing U.S. Government securities. Valuation techniques used by the Company to measure fair value for these securities during the period consisted primarily of third party pricing services that utilized actual market data such as trades of comparable bond issues, broker/dealer quotations for the same or similar investments in active markets and other observable inputs.

The following table summarizes the Company's available-for-sale marketable securities as of June 30, 2011 and December 31, 2010:

			Gross		Gross
	Amortized		Unrealized		Unrealized			Estimated
	Cost		Gains		Losses			Fair Value
			(in thousands)
June 30, 2011:
Municipal bonds	$	37,497	$	110	$	(9	)	$	37,598
December 31, 2010:
Municipal bonds	$	43,330	$	63	$	(26	)	$	43,367

The Company utilizes specific identification to account for realized gains and losses recognized on sales of available-for-sale marketable securities.  During the periods ended June 30, 2011 and 2010, the Company had no realized gains or losses recognized on sales of marketable securities.

As of June 30, 2011, the contractual maturities of the Company's marketable securities were as follows:

	Amortized Cost		Estimated Fair Value
	(in thousands)
Less than one year	$	20,369	$	20,395
One to five years		17,128		17,203
Total	$	37,497	$	37,598

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Acquisitions

6 Months Ended

Jun. 30, 2011

Acquisitions [Abstract]

Acquisitions

4. Acquisitions

The Company accounts for its acquisitions in accordance with ASC 805, Business Combinations, which requires allocation of the purchase price to tangible and identifiable intangible assets acquired and liabilities assumed based on the fair value at the date of purchase.  The purchase price in excess of the identifiable assets and liabilities is recorded to goodwill.  All acquisition related costs are expensed as incurred and recorded in operating expenses.  The Company includes operations associated with acquisitions from the date of acquisition forward.

In January 2011, the Company acquired from HumanConcepts, a provider of workforce decision support solutions, ownership of its OrgPlus desktop software product line for small and medium-sized businesses, and its associated customer base, as well as a source code license for a SaaS-based version. OrgPlus facilitates creation, management and communication of detailed organizational charts. The acquisition reflects Insperity's continued business strategy to expand its human resource services as well as the solutions available to the Company's current and target clients.  The Company paid $10.8 million upon the closing of the transaction and expects to pay an additional $1.2 million in 2012 based on the terms of the agreement.

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Basis of Presentation (Details)	Jun. 30, 2011	Jun. 30, 2010
Basis of Presentation [Abstract]
Years of evolution from a professional employer organization to a comprehensive business performance solutions provider	25
Percentage of revenues from the Company's Texas markets (in hundredths)	27.00%	29.00%
Percentage of revenues from the Company's California markets (in hundredths)	16.00%	15.00%

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Stockholders' Equity

6 Months Ended

Jun. 30, 2011

Stockholders' Equity [Abstract]

Stockholders' Equity

5. Stockholders' Equity

The Company's Board of Directors (the “Board”) has authorized a program to repurchase shares of the Company's outstanding common stock from time to time in the open market or directly from stockholders at prevailing market prices based on market conditions and other factors.  During the six months ended June 30, 2011, 119,237 shares were repurchased under the program and 106,407 shares were withheld to satisfy tax withholding obligations for the vesting of restricted stock awards.  The shares related to withholding obligations are not subject to the repurchase program.  As of June 30, 2011, the Company was authorized to repurchase an additional 1,020,156 shares under the program.

The Board declared quarterly dividends of $0.15 and $0.13 per share of common stock in each of the first two quarters of 2011 and 2010, respectively, resulting in a total of $8.0 million and $6.8 million, respectively, in dividend payments made by the Company during the first half of each year.

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Acquisitions (Details) (USD $) In Millions	6 Months Ended
	Jun. 30, 2011
Acquisitions [Abstract]
Acquisition date of OrgPlus desktop software product line	January 2011
Amount paid upon closing for the acquisition of OrgPlus software product line	$ 10.8
Expected future payments of acquisition of OrgPlus software product line	$ 1.2

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CONSOLIDATED STATEMENT OF STOCKHOLDERS EQUITY (Unaudited) (USD $) In Thousands, except Share data	Total	Common Stock Issued [Member]	Additional Paid-In Capital [Member]	Treasury Stock [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2010	$ 240,395	$ 309	$ 135,607	$ (124,464)	$ 228,922	$ 21
Balance (in shares) at Dec. 31, 2010		30,839
Purchase of treasury stock, at cost	(6,639)	0	0	(6,639)	0	0
Exercise of stock options	3,283	0	(966)	4,249	0	0
Income tax benefit from stock-based compensation, net	1,610	0	1,610	0	0	0
Stock-based compensation expense	4,346	0	(140)	4,486	0	0
Other	486	0	82	404	0	0
Dividends paid	(7,953)	0	0	0	(7,953)	0
Change in unrealized gain on marketable securities, net of tax:
Unrealized gain	38	0	0	0	0	38
Net income	15,527	0	0	0	15,527	0
Comprehensive income	15,565	0	0	0	0	0
Balance at Jun. 30, 2011	$ 251,093	$ 309	$ 136,193	$ (121,964)	$ 236,496	$ 59
Balance (in shares) at Jun. 30, 2011		30,839

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Stockholders' Equity (Details) (USD $) In Thousands, except Share data	3 Months Ended				6 Months Ended
	Jun. 30, 2011	Mar. 31, 2011	Jun. 30, 2010	Mar. 31, 2010	Jun. 30, 2011	Jun. 30, 2010
Stockholders' Equity [Abstract]
Shares were repurchased under the program					119,237
Shares withheld for tax withholding obligations for the vesting of restricted stock awards					106,407
Authorized to repurchased additional Shares under repurchase program.	1,020,156				1,020,156
Dividends declared per share of common stock (in dollars per share)	$ 0.15	$ 0.15	$ 0.13	$ 0.13
Dividend Paid					$ 7,953	$ 6,775

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Commitments and Contingencies (Details) (USD $) In Millions	Jun. 30, 2011	Dec. 31, 2003
Commitments and Contingencies [Abstract]
Unemployment tax reserve account assessment relating to California employees, including penalties and interest	$ 8.1	$ 5.6

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Basis of Presentation

6 Months Ended

Jun. 30, 2011

Basis of Presentation [Abstract]

Basis of Presentation

1. Basis of Presentation

Insperity, Inc., a Delaware corporation formerly named Administaff, Inc. (“Insperity” or the “Company”) provides an array of human resources (“HR”) and business solutions designed to help improve business performance. The Company's name change, which was effective March 3, 2011, reflects the Company's evolution over the past 25 years from a professional employer organization (“PEO”), an industry it pioneered, to its current position as a comprehensive business performance solutions provider.  The Company's most comprehensive HR business offering is provided through its PEO services, now known as Workforce OptimizationTM, which encompasses a broad range of human resource functions, including payroll and employment administration, employee benefits, workers' compensation, government compliance, performance management, and training and development services.  In addition to Workforce Optimization, the Company provides Performance Management, Expense Management, Time and Attendance, Organizational Planning, Employment Screening, Recruiting Services, Retirement Services, Business Insurance and Technology Services solutions, many of which are offered via desktop applications and software as a service (“SaaS”) delivery models (“Adjacent Businesses”). For the six months ended June 30, 2011 and 2010, revenues from the Company's Texas markets represented 27% and 29%, while revenues from the Company's California markets represented 16% and 15%, of the Company's total revenues, respectively.

The consolidated financial statements include the accounts of the Company and its subsidiaries, all of which are wholly owned.  Intercompany accounts and transactions have been eliminated in consolidation.

The preparation of financial statements in conformity with accounting principles generally accepted in the United States (“GAAP”) requires management to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes.  Actual results could differ from those estimates.

The accompanying consolidated financial statements should be read in conjunction with the Company's audited consolidated financial statements as of and for the year ended December 31, 2010. The Company's Consolidated Balance Sheet at December 31, 2010 has been derived from the audited financial statements at that date, but does not include all of the information or footnotes required by GAAP for complete financial statements.  The Company's Consolidated Balance Sheet at June 30, 2011 and the Consolidated Statements of Operations, Cash Flows and Stockholders' Equity for the periods ended June 30, 2011 and 2010, have been prepared by the Company without audit.  In the opinion of management, all adjustments, consisting only of normal recurring adjustments necessary to present fairly the consolidated financial position, results of operations and cash flows, have been made. Certain prior year amounts have been reclassified to conform to the 2011 presentation.

The Company has evaluated subsequent events through the time these financial statements in the Form 10-Q report were filed with the Securities and Exchange Commission.

The results of operations for the interim periods are not necessarily indicative of the operating results for a full year or of future operations.

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Cash, Cash Equivalents and Marketable Securities (Tables)

6 Months Ended

Jun. 30, 2011

Cash, Cash Equivalents and Marketable Securities [Abstract]

Summary of investments in cash, cash equivalents and marketable securities

The following table summarizes the Company's investments in cash equivalents and marketable securities held by investment managers and overnight investments:

	June 30,			December 31,
	2011			2010
	(in thousands)
Overnight Holdings
Money market funds (cash equivalents)	$	82,413		$	157,680
Investment Holdings
Money market funds (cash equivalents)		87,952			72,258
Marketable securities		37,598			43,367
		207,963			273,305
Cash held in demand accounts		105,672			31,295
Outstanding checks		(10,846	)		(26,404	)
Total cash, cash equivalents and marketable securities	$	302,789		$	278,196
Cash and cash equivalents	$	265,191		$	234,829
Marketable securities		37,598			43,367
	$	302,789		$	278,196

Summary of fair value measurements of financial assets

The following table summarizes the levels of fair value measurements of the Company's financial assets:

	Fair Value Measurements
	(in thousands)
	June 30,
	2011		Level 1		Level 2		Level 3
Money market funds	$	170,365	$	170,365	$	-	$	-
Municipal bonds		37,598		-		37,598		-
Total	$	207,963	$	170,365	$	37,598	$	-

	Fair Value Measurements
	(in thousands)
	December 31,
	2010		Level 1		Level 2		Level 3
Money market funds	$	229,938	$	229,938	$	-	$	-
Municipal bonds		43,367		-		43,367		-
Total	$	273,305	$	229,938	$	43,367	$	-

Contractual maturities of marketable secuities

As of June 30, 2011, the contractual maturities of the Company's marketable securities were as follows:

	Amortized Cost		Estimated Fair Value
	(in thousands)
Less than one year	$	20,369	$	20,395
One to five years		17,128		17,203
Total	$	37,497	$	37,598

Summary of available-for-sale securities

The following table summarizes the Company's available-for-sale marketable securities as of June 30, 2011 and December 31, 2010:

			Gross		Gross
	Amortized		Unrealized		Unrealized			Estimated
	Cost		Gains		Losses			Fair Value
			(in thousands)
June 30, 2011:
Municipal bonds	$	37,497	$	110	$	(9	)	$	37,598
December 31, 2010:
Municipal bonds	$	43,330	$	63	$	(26	)	$	43,367

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Cash, Cash Equivalents and Marketable Securities (Details) (USD $)	Jun. 30, 2011	Dec. 31, 2010	Jun. 30, 2010	Dec. 31, 2009
Overnight Holdings
Money market funds (cash equivalents)	$ 82,413,000	$ 157,680,000
Investment Holdings [Abstract]
Money market funds (cash equivalents)	87,952,000	72,258,000
Marketable securities	37,598,000	43,367,000
Total cash equivalents and marketable securities	207,963,000	273,305,000
Cash held in demand accounts	105,672,000	31,295,000
Outstanding checks	(10,846,000)	(26,404,000)
Total cash, cash equivalents and marketable securities	302,789,000	278,196,000
Cash and cash equivalents	265,191,000	234,829,000	169,382,000	227,085,000
Withholding associated with federal and state income taxes, employment taxes and other payroll deductions included in cash balance. (in millions)	83,600,000	128,800,000
Client prepayments included in cash balance (in millions)	81,100,000	8,100,000
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Municipal bonds	37,598,000
Schedule of Available-for-sale Securities [Line Items]
Estimated fair value	37,598,000
Less than one year	20,369,000
One to five years	17,128,000
Total	37,497,000
Less than one year	20,395,000
One to five years	17,203,000
Total	37,598,000
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	170,365,000	229,938,000
Municipal bonds	37,598,000	43,367,000
Total	207,963,000	273,305,000
Schedule of Available-for-sale Securities [Line Items]
Estimated fair value	37,598,000	43,367,000
Total	37,598,000	43,367,000
Fair Value, Inputs, Level 1 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds		229,938,000	170,365,000
Municipal bonds		0	0
Total		229,938,000	170,365,000
Schedule of Available-for-sale Securities [Line Items]
Estimated fair value		0	0
Total		0	0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	0		0
Municipal bonds	37,598,000		43,367,000
Total	37,598,000		43,367,000
Schedule of Available-for-sale Securities [Line Items]
Estimated fair value	37,598,000		43,367,000
Total	37,598,000		43,367,000
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Money market funds	0		0
Municipal bonds	0		0
Total	0		0
Schedule of Available-for-sale Securities [Line Items]
Estimated fair value	0		0
Total	0		0
US States and Political Subdivisions Debt Securities [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Municipal bonds	37,598,000	43,367,000
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	37,497,000	43,330,000
Gross unrealied gains	110,000	63,000
Gross unrealized losses	(9,000)	(26,000)
Estimated fair value	37,598,000	43,367,000
Total	$ 37,598,000	$ 43,367,000

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CONSOLIDATED BALANCE SHEETS (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets:
Cash and cash equivalents	$ 265,191	$ 234,829
Restricted cash	41,331	41,204
Marketable securities	37,598	43,367
Accounts receivable, net:
Trade	1,601	1,194
Unbilled	128,302	134,187
Other	5,186	6,726
Prepaid insurance	24,523	24,978
Other current assets	9,745	8,528
Income taxes receivable	976	1,808
Deferred income taxes	108	1,267
Total current assets	514,561	498,088
Property and equipment:
Land	3,653	3,260
Buildings and improvements	65,999	64,953
Computer hardware and software	74,911	67,714
Software development costs	28,804	27,482
Furniture and fixtures	35,136	35,164
Aircraft	31,441	31,524
Total Property and equipment, gross	239,944	230,097
Accumulated depreciation and amortization	(158,738)	(154,070)
Total property and equipment, net	81,206	76,027
Other assets:
Prepaid health insurance	9,000	9,000
Deposits - health insurance	2,640	2,640
Deposits - workers' compensation	45,724	51,731
Goodwill and other intangible assets, net	29,280	21,251
Other assets	1,131	1,108
Total other assets	87,775	85,730
Total assets	683,542	659,845
Current liabilities:
Accounts payable	2,424	3,309
Payroll taxes and other payroll deductions payable	98,210	145,096
Accrued worksite employee payroll cost	171,076	109,697
Accrued health insurance costs	12,425	15,419
Accrued workers' compensation costs	42,926	42,081
Accrued corporate payroll and commissions	19,764	23,743
Other accrued liabilities	15,493	14,264
Total current liabilities	362,318	353,609
Noncurrent liabilities:
Accrued workers' compensation costs	59,735	55,730
Other accrued liabilities	1,299	1,261
Deferred income taxes	9,097	8,850
Total noncurrent liabilities	70,131	65,841
Stockholders' equity:
Common stock	309	309
Additional paid-in capital	136,193	135,607
Treasury stock, at cost	(121,964)	(124,464)
Accumulated other comprehensive income, net of tax	59	21
Retained earnings	236,496	228,922
Total stockholders' equity	251,093	240,395
Total liabilities and stockholders' equity	$ 683,542	$ 659,845