CONSOLIDATED STATEMENTS OF CASH FLOWS (UNAUDITED) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ (212,013)	$ 36,271
Adjustments to reconcile net income (loss) to net cash provided by operating activities:
Depreciation and amortization	40,997	22,366
Amortization and write-off of deferred loan costs	3,540	3,256
Amortization of debt discount	3,145	2,593
Share-based employee compensation expense	8,005	15,266
Impairment of goodwill and intangible assets	265,698
Deferred income taxes	(17,889)	10,489
Decrease (increase) in accounts receivable, net	60,644	(1,407)
Decrease in inventory	14,991	14,775
Decrease in other current assets	1,451	3,608
Increase (decrease) in accounts payable	3,479	(9,917)
Decrease in accrued salaries and benefits	(2,811)	(592)
Decrease in other current liabilities	(11,379)	(14,138)
Increase in deferred revenue	2,546	345
Other	4,548	1,908
Net cash flows provided by operating activities	164,952	84,823
Cash flows from investing activities:
Acquisition of property and equipment	(13,265)	(15,354)
Business acquisitions, net of cash acquired		(1,062,818)
Net cash flows used in investing activities	(13,265)	(1,078,172)
Cash flows from financing activities:
Proceeds from issuance of long-term debt	196,525	1,505,245
Payments of long-term debt	(276,100)	(478,479)
Payments related to tax withholding for share-based compensation	(3,293)	(1,464)
Exercise of stock options	719	701
Deferred loan costs		(30,189)
Principal payments related to financing leases	(464)	(34)
Change in cash overdraft and other	(15,120)	2,505
Net cash flows (used in) provided by financing activities	(97,733)	998,285
Effect of exchange rate changes on cash		(12)
Net increase in cash and cash equivalents	53,954	4,924
Cash and cash equivalents, beginning of period	2,486	1,933
Cash and cash equivalents, end of period	$ 56,440	$ 6,857