CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012
Cash flows from operating activities:
Net income	$ 62,685	$ 25,432
Adjustments to reconcile net income to net cash provided by operating activities:
Amortization expense of intangibles	5,858	21,001
Amortization of debt issuance costs	587	1,180
Depreciation expense	10,859	9,839
Accretion of original issue discount		1,840
Non-cash compensation expense	7,753	8,733
Non-cash interest expense	277	338
Non-cash interest income		(651)
Deferred income taxes	656	1,370
Excess tax benefits from stock-based awards	(2,602)	(3,014)
Loss (gain) on disposal of property and equipment	163	(256)
Loss on extinguishment of debt		18,527
Change in fair value of contingent consideration	485	(670)
Changes in operating assets and liabilities:
Accounts receivable	(4,189)	(2,803)
Prepaid expenses and other current assets	6,863	2,845
Prepaid income taxes and income taxes payable	5,824	(11,272)
Accounts payable and other current liabilities	(3,761)	(14,942)
Deferred revenue	(3,852)	3,942
Other, net	1,696	2,683
Net cash provided by operating activities	89,302	64,122
Cash flows from investing activities:
Acquisition, net of cash acquired		(39,963)
Acquisition of assets	(1,952)
Capital expenditures	(9,338)	(10,425)
Proceeds from disposal of property and equipment	7	230
Investment in financing receivables		(9,480)
Payments received on financing receivables	9,876	16,989
Net cash used in investing activities	(1,407)	(42,649)
Cash flows from financing activities:
Principal payments on term loan		(56,000)
Redemption of senior notes		(300,000)
Payments on revolving credit facility	(70,000)
Borrowings on revolving credit facility		290,000
Payments of debt issuance costs		(3,912)
Dividend payments	(12,617)	(16,996)
Withholding taxes on vesting of restricted stock units	(4,478)	(6,174)
Proceeds from the exercise of stock options	399	634
Excess tax benefits from stock-based awards	2,602	3,014
Net cash used in financing activities	(84,094)	(89,434)
Effect of exchange rate changes on cash and cash equivalents	(1,400)	4,401
Net increase (decrease) in cash and cash equivalents	2,401	(63,560)
Cash and cash equivalents at beginning of period	101,162	195,517
Cash and cash equivalents at end of period	103,563	131,957
Cash paid during the period for:
Interest, net of amounts capitalized	4,068	29,528
Income taxes, net of refunds	$ 35,091	$ 24,813