Condensed Consolidated Statements of Cash Flows - USD ($) $ in Thousands	1 Months Ended	8 Months Ended	9 Months Ended
	Sep. 30, 2017	Aug. 31, 2017	Sep. 30, 2016
Cash flows from operating activities:
Net (loss) income	$ (2,648)
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization	3,330
Amortization of debt issuance costs, discounts and premium	(103)
Amortization of unfavorable lease liability	(27)
Equity-based compensation	1,683
Loss on disposal or impairment of long-lived assets, net	333
Loss on debt refinancing	0
Gain on amendment to tax receivable agreement	(1,098)
Tax receivable agreement expense	0
Deferred income taxes	(465)
Provision for doubtful accounts	3,690
(Income) loss from equity investments, net of distributions received	(203)
Changes in operating assets and liabilities, net of acquisitions and divestitures:
Accounts receivable	(2,795)
Other operating assets and liabilities	(2,919)
Net cash (used in) provided by operating activities	(1,222)
Cash flows from investing activities:
Purchases of property and equipment, net	(1,840)
Payments for acquisitions, net of cash acquired	(1,163)
Proceeds from divestitures	0
Net cash used in investing activities	(3,003)
Cash flows from financing activities:
Principal payments on long-term debt	(3,609)
Borrowings of long-term debt	0
Payments of debt issuance costs	(4)
Penalty on prepayment of debt	0
Proceeds from preferred stock issuance	0
Payments of stock issuance costs	0
Distributions to non-controlling interest holders	(6,444)
Receipts (payments) related to ownership transactions with non-controlling interest holders	30
Financing lease obligation	(253)
Other financing activities	0
Net cash (used in) provided by financing activities	(10,280)
Net (decrease) increase in cash and cash equivalents	(14,505)
Cash and cash equivalents at beginning of period	214,206
Cash and cash equivalents at end of period	199,701	$ 214,206
Predecessor
Cash flows from operating activities:
Net (loss) income		30,418	$ 46,983
Adjustments to reconcile net income to net cash (used in) provided by operating activities:
Depreciation and amortization		30,124	28,984
Amortization of debt issuance costs, discounts and premium		5,091	5,295
Amortization of unfavorable lease liability		(217)	(323)
Equity-based compensation		3,697	1,326
Loss on disposal or impairment of long-lived assets, net		1,715	1,697
Loss on debt refinancing		18,211	11,876
Gain on amendment to tax receivable agreement		(15,294)	0
Tax receivable agreement expense		0	3,733
Deferred income taxes		(18,703)	1,903
Provision for doubtful accounts		16,297	15,931
(Income) loss from equity investments, net of distributions received		489	(138)
Changes in operating assets and liabilities, net of acquisitions and divestitures:
Accounts receivable		8,837	(38,480)
Other operating assets and liabilities		(12,947)	14,076
Net cash (used in) provided by operating activities		67,718	92,863
Cash flows from investing activities:
Purchases of property and equipment, net		(18,773)	(28,377)
Payments for acquisitions, net of cash acquired		(725,853)	(126,018)
Proceeds from divestitures		70	0
Net cash used in investing activities		(744,556)	(154,395)
Cash flows from financing activities:
Principal payments on long-term debt		(1,164,237)	(453,957)
Borrowings of long-term debt		1,805,966	580,945
Payments of debt issuance costs		(58,591)	(14,296)
Penalty on prepayment of debt		0	(4,900)
Proceeds from preferred stock issuance		310,000	0
Payments of stock issuance costs		(18,347)	0
Distributions to non-controlling interest holders		(50,343)	(49,443)
Receipts (payments) related to ownership transactions with non-controlling interest holders		(1,518)	1,105
Financing lease obligation		(796)	(646)
Other financing activities		(789)
Net cash (used in) provided by financing activities		821,345	58,808
Net (decrease) increase in cash and cash equivalents		144,507	(2,724)
Cash and cash equivalents at beginning of period	$ 214,206	69,699	57,933
Cash and cash equivalents at end of period		$ 214,206	$ 55,209