Unaudited Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
CASH FLOWS FROM OPERATING ACTIVITIES:
Net income (loss)	$ 34,019	$ (2,828)
Adjustments to reconcile net income (loss) to net cash provided by operating activities-net of effect of acquisitions:
Intangible amortization	35,723	28,741
Depreciation and other amortization	2,982	2,313
Amortization of debt financing costs	782	782
Non-cash equity compensation expense	5,034	3,921
Non-cash changes in fair value of estimated contingent consideration	(31,373)	7,414
Income from equity method investments	(64)	(314)
Distributions received from equity method investments	25	263
Deferred taxes and other non-cash items	4,104	(575)
Loss on extinguishment of borrowings	6,094
Changes in cash resulting from changes in operating assets and liabilities:
Accounts receivable	(9,047)	(20,690)
Prepaid expenses and other assets	(1,705)	(5,788)
Accounts payable	1,281	4,662
Accrued expenses	(1,612)	3,741
Due to affiliates	(41,785)	1,723
Other liabilities	(2,815)	(7,537)
Deferred revenue	1,739	85
Net cash provided by operating activities	3,382	15,913
CASH FLOWS FROM INVESTING ACTIVITIES:
Cash paid for acquisitions and contingent consideration-net of cash acquired	(52,188)	(203,394)
Purchase of fixed assets	(3,188)	(1,875)
Net cash used in investing activities	(55,376)	(205,269)
CASH FLOWS FROM FINANCING ACTIVITIES:
Borrowings under credit facilities	285,000	295,000
Repayments of borrowings under credit facilities	(37,892)	(47,007)
Contingent consideration paid	(21,428)	(7,649)
Payments of debt financing costs	(634)
Proceeds from exercise of stock options	77	214
Payments on finance lease obligations	(34)	(57)
Distributions for unitholders	(4,567)	(596)
Net cash provided by financing activities	220,522	239,905
EFFECT OF EXCHANGE RATES ON CASH AND CASH EQUIVALENTS	(667)	17
CHANGE IN CASH AND CASH EQUIVALENTS	167,861	50,566
CASH AND CASH EQUIVALENTS:
Beginning of period	65,178	33,213
End of period	$ 233,039	$ 83,779