Consolidated Statements of Cash Flows - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Operating activities
Net loss	$ (2,328)	$ (5,145)
Adjustments to reconcile net income to cash provided by operating activities:
Depreciation, amortization and impairment	8,527	10,066
Amortization of discounts, fees and deferred financing costs	810	486
Stock-based compensation	2,723	1,401
Deferred taxes	1,650	214
Change in fair value of income tax receivable agreement	(1,699)	(1,682)
Loss (gain) on disposal of assets	427	(395)
Other non-cash charges, net	116	(168)
Change in operating assets and liabilities, net of acquisitions:
Accounts receivable	311	206
Inventories	174	4,502
Prepaid expenses and other current assets	(6,165)	1,111
Other assets	(2,908)	(197)
Right-of-use assets and operating lease liabilities	111	(1,801)
Accounts payable	7,714	(12,667)
Accrued compensation and benefits	(4,346)	(4,410)
Accrued expenses and other liabilities	8,561	(1,514)
Cash provided by (used in) operating activities	13,678	(9,993)
Investing activities
Purchases of property, equipment and intangible assets	(5,772)	(8,500)
Proceeds from sale of clinics	0	3,300
Cash paid for acquisitions	0	(6,590)
Cash used in investing activities	(5,772)	(11,790)
Financing activities
Proceeds from revolving credit facility and term loans, net of discounts and fees	41,606	46,857
Payments on long-term debt	(12,137)	(12,661)
Dividends and dividend equivalents paid	(5)	(11)
Proceeds from exercise of stock options	154	70
Repurchase of vested restricted stock awards withheld on net share settlement	(427)	(338)
Distributions to noncontrolling interests	(10,748)	(4,750)
Contributions from noncontrolling interests	1,536	2,410
Purchases of equity of noncontrolling interests	0	(223)
Cash provided by financing activities	19,979	31,354
Increase in cash	27,885	9,571
Cash and restricted cash at beginning of period	34,494	55,300
Cash at end of period	62,379	64,871
Supplemental Disclosure of Cash Flow Information
Cash paid for income taxes	100	97
Cash paid for interest	8,583	6,325
Supplemental Disclosure of Non-Cash Financing Activities
Non-cash equity impacts of the sale or closure of clinics	479	(4,866)
Non-cash equity contributions	1,037	4,684
Change in liability accrued for dividend equivalent payments	$ 7	$ 15