Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Cash flows from operating activities:
Net income (loss)	$ 7,435	$ (7,175)
Adjustments to reconcile net (loss) income to net cash provided by operating activities:
Depreciation, including patient equipment depreciation	35,114	28,206
Equity-based compensation	5,467	5,406
Deferred income tax	1,128	2,874
Change in fair value of interest rate swaps, net of reclassification adjustment	(1,415)	9,437
Change in fair value of contingent consideration	(2,900)
Payment of contingent consideration - operating	(1,000)
Amortization of deferred financing costs	783	588
Write-off of deferred financing costs		2,121
Gain on sale of investment	(591)
Changes in operating assets and liabilities, net of effects from acquisitions:
Accounts receivable	(20,506)	(12,986)
Inventory	(6,792)	(2,245)
Prepaid and other assets	3,603	(2,558)
Accounts payable and accrued expenses and other current liabilities	90,682	2,368
Net cash provided by operating activities	111,008	26,036
Cash flows from investing activities:
Payments for business acquisitions, net of cash acquired	(107,463)	(27,969)
Payments for investments in cost-method companies	(1,000)
Purchases of equipment and other fixed assets	(10,915)	(10,741)
Proceeds from sale of investment	2,046
Net cash used in investing activities	(117,332)	(38,710)
Cash flows from financing activities:
Proceeds from borrowings on long-term debt and lines of credit	70,000	319,500
Repayments on long-term debt and lines of credit	(21,641)	(153,826)
Payments on capital leases	(19,409)	(19,111)
Proceeds from exercise of warrants	11,883
Distributions to noncontrolling interest	(800)	(1,338)
Proceeds from issuance of promissory note payable		100,000
Proceeds from issuance of members' interests		20,000
Payments for equity issuance costs		(837)
Payments of deferred financing costs		(9,028)
Distributions to members		(250,000)
Payment of contingent consideration - financing		(12,000)
Payments for redemption of members' interest		(3,713)
Net cash provided by (used in) financing activities	40,033	(10,353)
Net increase (decrease) in cash and cash equivalents	33,709	(23,027)
Cash and cash equivalents - beginning of the period	76,878	25,186
Cash and cash equivalents - end of the period	110,587	2,159
Supplemental disclosures:
Cash paid for interest	15,488	7,351
Cash paid for income taxes	2,155	438
Noncash investing and financing activities:
Equipment acquired under capital lease obligations	20,632	18,038
Unpaid equipment and other fixed asset purchases at end of year	6,990	8,427
Equity consideration issued in connection with an acquisition	$ 6,248
Contingent purchase price in connection with acquisitions		1,500
Seller note issued in connection with an acquisition		$ 2,000