Condensed Consolidated Balance Sheets - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Current assets
Cash and cash equivalents	$ 104,974	$ 283,680
Accounts receivable:
Billed receivables	426,947	381,464
Unbilled receivables	310,778	248,462
Allowance for doubtful accounts and unbilled services	(183,325)	(144,825)
Accounts receivable, net	554,400	485,101
Current portion of notes receivable	35,097	27,208
Prepaid expenses and other current assets	55,166	60,852
Current portion of deferred tax assets	38,842	27,332
Total current assets	788,479	884,173
Property and equipment, net of accumulated depreciation	77,716	82,163
Goodwill	1,199,490	1,211,689
Other intangible assets, net of amortization	67,252	77,034
Notes receivable, net of current portion	112,711	122,149
Other assets	48,364	53,319
Total assets	2,294,012	2,430,527
Current liabilities
Accounts payable, accrued expenses and other	101,464	99,494
Accrued compensation	203,492	220,959
Current portion of long-term debt		11,000
Billings in excess of services provided	29,554	35,639
Total current liabilities	334,510	367,092
Long-term debt, net of current portion	520,000	700,000
Deferred income taxes	178,180	161,932
Other liabilities	98,919	98,757
Total liabilities	$ 1,131,609	$ 1,327,781
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-41,887 (2015) and 41,181 (2014)	$ 419	$ 412
Additional paid-in capital	421,532	393,174
Retained earnings	845,132	789,428
Accumulated other comprehensive loss	(104,680)	(80,268)
Total stockholders' equity	1,162,403	1,102,746
Total liabilities and stockholders' equity	$ 2,294,012	$ 2,430,527

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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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.