Schedule 1-Parent Only Disclosures [Schedule] Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Accounts and other receivables	$ 31,565	$ 20,367
Prepaid expenses and other assets	5,300	2,895
Total current assets	117,976	86,558
Restricted Cash and Cash Equivalents	1,400	600
Property and equipment, net	69,803	7,868
Intangible assets, net	8,071	4,972
Other Assets, Noncurrent	6,706	2,624
Total assets	207,510	105,859
Accrued Liabilities, Current	11,347	7,660
Total current liabilities	63,203	45,866
Long-term Debt, Excluding Current Maturities	12,862	9,324
Deferred tax liabilities	1,002	1,002
Other liabilities	1,270	1,233
Total liabilities	78,337	57,425
Common Stock, Value, Outstanding	0	0
Preferred Stock, Value, Outstanding	0	0
Additional Paid-in Capital	219,838	134,511
Accumulated other comprehensive loss	(753)	(92)
Accumulated deficit	(83,711)	(82,784)
Treasury stock, at cost	(6,201)	(3,201)
Total stockholders' deficit	129,173	48,434	$ 44,715	$ 45,356
Liabilities and Equity	207,510	105,859
Parent Company
Condensed Financial Statements, Captions [Line Items]
Cash Equivalents, at Carrying Value	2,133	1,105
Accounts and other receivables	2,094	2,261
Prepaid expenses and other assets	661	295
Total current assets	4,888	3,661
Restricted Cash and Cash Equivalents	1,400	600
Property and equipment, net	568	661
Intangible assets, net	5,076	4,795
Other Assets, Noncurrent	6,515	2,488
Advances to subsidiaries	125,475	47,209
Total assets	143,922	59,414
Accounts Payable and Accrued Liabilities, Current	885	654
Total current liabilities	885	654
Long-term Debt, Excluding Current Maturities	12,862	9,324
Deferred tax liabilities	1,002	1,002
Other liabilities	0	0
Total liabilities	14,749	10,980
Common Stock, Value, Outstanding	0	0
Preferred Stock, Value, Outstanding	0	0
Additional Paid-in Capital	219,838	134,511
Accumulated other comprehensive loss	(753)	(92)
Accumulated deficit	(83,711)	(82,784)
Treasury stock, at cost	(6,201)	(3,201)
Total stockholders' deficit	129,173	48,434
Liabilities and Equity	$ 143,922	$ 59,414