The accompanying unaudited Condensed Consolidated Financial Statements have been prepared in accordance with generally accepted accounting principles in the United States of America (“U.S. GAAP”) for interim financial information and with the instructions for Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by U.S. GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of recurring accruals) necessary for a fair presentation have been included. These unaudited Condensed Consolidated Financial Statements should be read in conjunction with the audited Consolidated Financial Statements and the Notes thereto set forth in the Company’s Annual Report on Form 10-K for the year ended December 31, 2018.

The preparation of these financial statements in conformity with U.S. GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, as well as disclosures of contingent assets and liabilities, at the date of the Condensed Consolidated Financial Statements, and the reported amounts of revenues and expenses during the reporting period. Actual results may differ from those estimates.

In August 2018, the FASB issued ASU 2018-15, “Intangibles—Goodwill and Other—Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract,” which provides guidance for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). ASU 2018-15 will take effect for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019. The impact of ASU 2018-15 is not expected to be material to the Company.

In January 2017, the FASB issued ASU No. 2017-04, “Intangibles-Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment.” The new guidance eliminates Step 2 of the goodwill impairment test. The updated guidance requires an entity to perform its annual or interim goodwill impairment test by comparing the fair value of the reporting unit to its carrying value, and recognizing a non-cash impairment charge for the amount by which the carrying value exceeds the reporting unit’s fair value with the loss not exceeding the total amount of goodwill allocated to that reporting unit. ASU 2017-04 will take effect for public companies for fiscal years, and interim periods within those fiscal years, beginning after December 15, 2019 and will be applied prospectively. The Company is currently evaluating the impact of this guidance on future interim or annual goodwill impairment tests performed.

In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842)” (“Topic 842”), which provides guidance for accounting for leases. Under Topic 842, all leases are required to be recorded on the balance sheet and are classified as either operating leases or finance leases. Effective as of January 1, 2019, the Company adopted Topic 842, and all related amendments, which established Accounting Standards Codification (“ASC”) Topic 842. The Company adopted these standards by the recognition of right-of-use assets and related lease liabilities on the balance sheet. As permitted by Topic 842, the Company elected the transition practical expedient to adopt as of January 1, 2019, the date of initial application under the modified retrospective approach for leases existing at that date, with an adjustment to retained earnings. As a result, the Consolidated Balance Sheet at December 31, 2018 was not restated and continues to be reported under ASC Topic 840 (“Topic 840”) which did not require the recognition of operating lease liabilities on the balance sheet, and thus is not comparative. For the nine months ended September 30, 2019, all of the Company's leases are classified as operating leases, which are primarily real estate leases for office space. The expense recognition for operating leases under Topic 842 is substantially consistent with Topic 840, where operating lease charges are recorded entirely in operating expenses. As a result, there is no significant difference in the Company's results of operations presented in the Company's Condensed Consolidated Statements of Income for each period presented.

The adoption of Topic 842 had a significant impact on the Company's balance sheet with the recognition of the operating lease right-of-use asset and the liability for operating leases. Upon adoption, leases that were classified as operating leases under Topic 840 were classified as operating leases under Topic 842. For the adoption of Topic 842, the Company recorded an adjustment of $202.9 million to operating lease right-of-use asset and the related lease liability, with no impact to retained earnings. The deferred rent previously accrued under Topic 840 was reclassified to the right-of-use asset upon the adoption of Topic 842. The lease liability is the present value of the remaining minimum lease payments, determined under Topic 840, discounted using the Company's incremental borrowing rate at the effective date of January 1, 2019. As permitted under Topic 842, the Company elected to use the practical expedient that permits the Company to not reassess whether a contract is or contains a lease, the classification of the Company's existing operating leases, and initial direct costs for any existing leases. The Company did not elect the practical expedient to use hindsight in determining the lease term (when considering lessee options to extend or terminate the lease and to purchase the underlying asset) and in assessing impairment of the Company's right-of-use assets. The application of the practical expedient did not have a significant impact on the measurement of the operating lease liability.

The impact of the adoption of Topic 842 on the balance sheet at January 1, 2019 was (in thousands):

(in thousands)	Balance at December 31, 2018		Adjustments due to Topic 842			Balance at January 1, 2019
Balance Sheet
Assets:
Other current assets		128,716		(3,004	)		125,712
Operating lease assets		—		178,304			178,304
Total Assets		6,688,668		175,300			6,863,968
Liabilities:
Accrued expenses and other liabilities		279,310		13,836			293,146
Operating lease liabilities		—		161,464			161,464
Total Liabilities		3,688,100		175,300			3,863,400

For contracts entered into on or after the January 1, 2019, at the inception of a contract the Company assesses whether the contract is, or contains, a lease. This assessment is based on: (1) whether the contract involves the use of a distinct identified asset, (2) whether the Company obtains the right to substantially all the economic benefit from the use of the asset throughout the period, and (3) whether the Company has the right to direct the use of the asset. Leases entered into prior to January 1, 2019 are accounted for under Topic 840 and were not reassessed. For real estate leases that contain both lease and non-lease components, the Company elected to account the lease components together with non-lease components (e.g., common-area maintenance).

Leases are classified as either finance leases or operating leases. A lease is classified as a finance lease if any one of the following criteria are met: the lease transfers ownership of the asset by the end of the lease term, the lease contains an option to purchase the asset that is reasonably certain to be exercised, or the lease term is for a major part of the remaining useful life of the asset or the present value of the lease payments equals or exceeds substantially all of the fair value of the asset. A lease is classified as an operating lease if it does not meet any one of these criteria. None of the Company's real estate leases for office space meet the definition of a finance lease. The Company's policy is to own, rather than lease, equipment.

For leases at the lease commencement date, a right-of-use asset and a lease liability are recognized. The right-of-use asset represents the right to use the leased asset for the lease term. The right-of-use asset is initially measured at cost, which primarily comprises the initial amount of the lease liability, plus any initial direct costs incurred, less any lease incentives received. The lease liability is initially measured at the present value of the lease payments under the lease. For the Company's operating leases, the lease payments are discounted using an incremental borrowing rate, which approximates the rate of interest that would be paid on a secured borrowing in an amount equal to the lease payments for the underlying asset under similar terms.

Lease payments included in the measurement of the lease liability comprise the following: the fixed noncancelable lease payments, payments for optional renewal periods where it is reasonably certain the renewal period will be exercised, and payments for early termination options unless it is reasonably certain the lease will not be terminated early. Some of the Company's real estate leases contain variable lease payments, including payments based on an index or rate. Variable lease payments based on an index or rate are initially measured using the index or rate in effect at lease commencement and based on the minimum amount stated in the lease. Lease components are included in the measurement of the initial lease liability. Additional payments based on the change in an index or rate, or payments based on a change in the Company's portion of the operating expenses, including real estate taxes and insurance, are recorded as a period expense when incurred. Lease modifications result in remeasurement of the right-of-use assets and the lease liability.

Lease expense for operating leases consists of the lease payments, inclusive of lease incentives, plus any initial direct costs, and is recognized on a straight-line basis over the lease term. Included in lease expense are any variable lease payments incurred in the period that were not included in the initial lease liability.

The Company elected not to recognize right-of-use assets and lease liabilities for short-term leases that have a total term of 12 months or less. The effect of short-term leases on the Company's right-of-use asset and lease liability would not be significant.