Condensed consolidated statements of cash flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss	$ (2,828)	$ (12,054)
Adjustments to reconcile net loss to net cash provided by operating activities-net of effect of acquisitions:
Intangible amortization	28,741	19,494
Depreciation and other amortization	2,313	1,882
Amortization of debt financing costs	782	959
Non-cash equity compensation expense	3,921	3,854
Non-cash changes in fair value of estimated contingent consideration	7,414	6,371
Income from equity method investments	(314)	(74)
Distributions received from equity method investments	263	344
Other non-cash items	(575)	(368)
Loss on extinguishment of borrowings		14,011
Changes in cash resulting from changes in operating assets and liabilities:
Accounts receivable	(20,690)	(11,017)
Prepaid expenses and other assets	(5,788)	(8,167)
Accounts payable	4,662	1,410
Accrued expenses	3,741	5,383
Due to affiliates	1,723	(9,914)
Other liabilities	(7,537)	(1,280)
Deferred revenue	85	1,891
Net cash provided by operating activities	15,913	12,725
CASH FLOWS FROM INVESTING ACTIVITIES:
Cash paid for acquisitions and contingent consideration-net of cash acquired	(203,394)	(25,531)
Purchase of fixed assets	(1,875)	(2,312)
Other		(3,400)
Net cash used in investing activities	(205,269)	(31,243)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under credit facilities	295,000
Repayments of borrowings under credit facilities	(47,007)	(1,987)
Contingent consideration paid	(7,649)	(2,180)
Payments of debt financing costs		(634)
Proceeds from exercise of stock options	214
Payments on finance lease obligations	(57)	(59)
Distributions for unitholders	(596)	(138)
Net cash (used in) provided by financing activities	239,905	(4,998)
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS	17	10
CHANGE IN CASH AND CASH EQUIVALENTS	50,566	(23,506)
CASH AND CASH EQUIVALENTS:
Beginning of year	33,213	51,455
End of year	$ 83,779	$ 27,949