CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Cash flows from operating activities:
Net income (loss)	$ (1,608)	$ 89,144
Adjustments to reconcile net income (loss) to net cash flows from operating activities:
Depreciation	6,274	5,488
Amortization	19,364	21,024
Amortization of deferred debt issuance costs	1,734	1,578
Deferred income taxes	(5,919)	19,596
Stock-based compensation expense	6,297	9,711
Gain on sale of CFS assets	0	(151,952)
Other	538	(398)
Changes in operating assets and liabilities, net of impact of acquisitions:
Receivables	84,033	34,588
Accounts payable	(3,689)	(12,880)
Accrued employee compensation	(12,421)	3,036
Current income taxes	(3,339)	17,424
Deferred revenue	9,049	8,542
Other current and noncurrent assets and liabilities	(14,627)	(6,378)
Net cash flows from operating activities	85,686	38,523
Cash flows from investing activities:
Purchases of property and equipment	(6,566)	(7,138)
Purchases of software and distribution rights	(5,839)	(8,766)
Proceeds from sale of CFS assets		200,000
Other		(7,000)
Net cash flows from investing activities	(12,405)	177,096
Cash flows from financing activities:
Proceeds from issuance of common stock	693	731
Proceeds from exercises of stock options	7,035	237
Repurchase of restricted stock for tax withholdings	(3,155)	(40)
Repurchases of common stock		(52,449)
Proceeds from revolving credit facility	12,000
Repayment of revolving credit facility	(100,000)	(143,000)
Proceeds from term portion of credit agreement	415,000
Repayment of term portion of credit agreement	(370,477)	(23,823)
Payment of debt issuance costs	(5,340)
Payments on other debt and capital leases	(4,629)	(6,270)
Net cash flows from financing activities	(48,873)	(224,614)
Effect of exchange rate fluctuations on cash	(417)	1,125
Net increase (decrease) in cash and cash equivalents	23,991	(7,870)
Cash and cash equivalents, beginning of period	75,753	102,239
Cash and cash equivalents, end of period	99,744	94,369
Supplemental cash flow information
Income taxes paid (received), net	6,919	(2,645)
Interest paid	$ 13,421	$ 14,040