CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
Cash flows from operating activities:
Net loss	$ (5,775)	$ (2,166)
Adjustments to reconcile net loss to net cash flows from operating activities:
Depreciation	5,324	3,764
Amortization	15,282	10,422
Amortization of deferred debt issuance costs	1,348	960
Deferred income taxes	(11,277)	(6,096)
Stock-based compensation expense	4,772	3,950
Excess tax benefit of stock options exercised	(4,070)	(1,308)
Other	(63)	559
Changes in operating assets and liabilities, net of impact of acquisitions:
Receivables	(3,123)	30,671
Accounts payable	(1,480)	(9,215)
Accrued employee compensation	(3,580)	(12,281)
Current income taxes	6,166	4,278
Deferred revenue	26,896	15,938
Other current and noncurrent assets and liabilities	(15,163)	(4,549)
Net cash flows from operating activities	15,257	34,927
Cash flows from investing activities:
Purchases of property and equipment	(4,228)	(6,241)
Purchases of software and distribution rights	(3,580)	(2,764)
Acquisition of businesses, net of cash acquired		(264,202)
Net cash flows from investing activities	(7,808)	(273,207)
Cash flows from financing activities:
Proceeds from issuance of common stock	652	475
Proceeds from exercises of stock options	2,887	3,864
Excess tax benefit of stock options exercised	4,070	1,308
Repurchases of common stock	(70,000)
Repurchase of restricted stock and performance shares for tax withholdings	(4,503)	(5,520)
Proceeds from term portion of credit agreement		300,000
Proceeds from revolving credit facility	40,000
Repayment of revolving credit facility	(8,000)
Repayment of term portion of credit agreement	(8,871)	(3,750)
Payments on other debt and capital leases	(382)	(8,338)
Payment for debt issuance costs	(163)	(9,272)
Net cash flows from financing activities	(44,310)	278,767
Effect of exchange rate fluctuations on cash	738	(4,332)
Net increase (decrease) in cash and cash equivalents	(36,123)	36,155
Cash and cash equivalents, beginning of period	95,059	76,329
Cash and cash equivalents, end of period	58,936	112,484
Supplemental cash flow information
Income taxes paid, net	5,114	1,398
Interest paid	$ 12,394	$ 2,847