CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Cash flows from operating activities
Net loss	$ (123,806)	$ (304)
Adjustments to reconcile net loss to net cash provided by operating activities:
Provision for bad debts	80
Depreciation and amortization	1,011	906
Stock-based compensation	726	2,845
Amortization of deferred financing costs	1,325	944
Impairment charges	161,224
Gain on equity securities	328
Amortization of ROU assets and accretion of lease liabilities - operating leases	1,544
Loss on sale of assets		5,142
Deferred income taxes	(39,088)	(53)
Changes in operating assets and liabilities:
Accounts receivable	9,657	10,528
Prepaid expenses and other assets	246	(1,231)
Accounts payable and accrued expenses	(1,683)	(2,165)
Deferred revenue	(587)	(154)
Other liabilities	(1,416)	1,202
Cash provided by operating activities	9,561	17,660
Cash flows from investing activities
Investments in intangible assets, including registration and renewal costs	(42)	(47)
Purchases of property and equipment	(33)	(1,792)
Cash used in investing activities	(75)	(1,839)
Cash flows from financing activities
Payment of long-term debt	(7,075)	(7,075)
Guaranteed payments in connection with acquisitions	(325)	(650)
Repurchases of common stock	(170)	(1,919)
Noncontrolling interest distributions	(1,093)	(1,244)
Cash used in financing activities	(8,663)	(10,888)
Net increase in cash and restricted cash	823	4,933
Balance — Beginning of period	16,138	20,433	$ 20,433
Balance — End of period	16,961	25,366	16,138
Reconciliation to amounts on condensed consolidated balance sheets
Cash	14,925	23,337	14,106
Restricted cash	2,036	2,029	$ 2,032
Supplemental disclosures of cash flow information
Cash paid for: Interest	14,420	14,513
Cash paid for: Taxes	2
Non-cash investing and financing activities
Accrued purchases of property and equipment at year end		1,114
Unrealized (loss) gain on interest rate cap, net during the period		$ 679
Unrealize loss on interest rate swaps, net during the period	$ (1,480)