CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net income	$ 24,648	$ 51,050
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	27,411	27,521
Amortization of intangible assets	27,143	36,432
Change in the fair value of acquisition related contingent consideration	24	(1,174)
Share-based compensation expense	3,237	4,692
Bad debt expense	3,101	763
Gain on early extinguishment of debt	(5,419)	(5,464)
Amortization of debt discount	225	307
Amortization of debt issuance costs	625	850
Deferred income taxes	0	17
Loss on disposal of fixed assets	2,776	30
Changes in operating assets and liabilities:
Accounts receivable	21,543	3,505
Prepaid expenses and other current assets	(17,272)	(10,167)
Other assets	760	496
Accounts payable and accrued expenses	165	7,005
Other current and non-current liabilities	(41,838)	(9,828)
Net cash provided by operating activities	47,129	106,035
Cash flows from investing activities:
Additions to premises and equipment	(7,485)	(16,525)
Acquisition of businesses, net of cash acquired	0	(9,617)
Purchase of available for sale securities	0	(48,219)
Change in restricted cash	(73)	0
Other investing activities	0	266
Net cash used in investing activities	(7,558)	(74,095)
Cash flows from financing activities:
Repayment and repurchases of long-term debt	(48,600)	(49,237)
Proceeds from stock option exercises	2,084	8,876
Purchase of treasury shares	(24,995)	(34,321)
Distributions to non-controlling interests	(2,143)	(1,637)
Payment of tax withholding on issuance of restricted shares	(1,088)	0
Net cash used in financing activities	(74,742)	(76,319)
Net decrease in cash and cash equivalents	(35,171)	(44,379)
Cash and cash equivalents at the beginning of the period	149,294	179,327
Cash and cash equivalents at the end of the period	114,123	134,948
Supplemental cash flow information:
Interest paid	16,203	17,244
Income taxes paid, net	15,445	14,178
Non-cash investing and financing activities:
Increase in payables for purchases of premises and equipment	$ 52	$ 2,458