Condensed Consolidated Balance Sheets (Unaudited) - USD ($) $ in Thousands	Sep. 30, 2016	Dec. 31, 2015
Current assets
Cash and cash equivalents	$ 225,184	$ 149,760
Accounts receivable:
Billed receivables	416,960	405,000
Unbilled receivables	326,297	280,538
Allowance for doubtful accounts and unbilled services	(195,669)	(185,754)
Accounts receivable, net	547,588	499,784
Current portion of notes receivable	32,490	36,115
Prepaid expenses and other current assets	58,804	55,966
Total current assets	864,066	741,625
Property and equipment, net of accumulated depreciation	66,422	74,760
Goodwill	1,188,230	1,198,298
Other intangible assets, net of amortization	54,493	63,935
Notes receivable, net of current portion	112,364	106,882
Other assets	56,043	43,518
Total assets	2,341,618	2,229,018
Current liabilities
Accounts payable, accrued expenses and other	97,144	89,845
Accrued compensation	229,611	227,783
Billings in excess of services provided	38,774	29,449
Total current liabilities	365,529	347,077
Long-term debt, net	470,339	494,772
Deferred income taxes	170,768	139,787
Other liabilities	103,397	99,779
Total liabilities	1,110,033	1,081,415
Commitments and contingent liabilities (note 10)
Stockholders' equity
Preferred stock, $0.01 par value; shares authorized — 5,000; none outstanding
Common stock, $0.01 par value; shares authorized — 75,000; shares issued and outstanding — 42,367 (2016) and 41,234 (2015)	423	412
Additional paid-in capital	429,902	400,705
Retained earnings	933,900	855,481
Accumulated other comprehensive loss	(132,640)	(108,995)
Total stockholders' equity	1,231,585	1,147,603
Total liabilities and stockholders' equity	$ 2,341,618	$ 2,229,018

Sum of the carrying values as of the balance sheet date of obligations incurred through that date and due within one year (or the operating cycle, if longer), including liabilities incurred (and for which invoices have typically been received) and payable to vendors for goods and services received, taxes, interest, rent and utilities, accrued salaries and bonuses, payroll taxes and fringe benefits.

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Balance Type:	credit
Period Type:	instant

- Definition

Amounts due from customers or clients, within one year of the balance sheet date (or the normal operating cycle, whichever is longer) for goods or services (including trade receivables) that have been delivered or sold in the normal course of business.