Schedule 1-Parent Only Disclosures [Schedule] Condensed Balance Sheet (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Condensed Financial Statements, Captions [Line Items]
Accounts and other receivables	$ 54,408	$ 31,565
Prepaid expenses and other assets	5,513	5,300
Total current assets	158,821	117,976
Restricted Cash and Cash Equivalents	1,400	1,400
Property and equipment, net	70,372	69,803
Intangible assets, net	7,731	8,071
Other Assets, Noncurrent	14,553	6,706
Total assets	257,200	207,510
Accrued Liabilities, Current	13,798	11,347
Total current liabilities	91,625	63,203
Long-term Debt, Excluding Current Maturities	26,086	12,862
Deferred tax liabilities	1,118	1,002
Other liabilities	1,611	1,270
Total liabilities	120,440	78,337
Common Stock, Value, Outstanding	0	0
Preferred Stock, Value, Outstanding	0	0
Additional Paid-in Capital	232,731	219,838
Accumulated other comprehensive loss	250	(753)
Accumulated deficit	(85,520)	(83,711)
Treasury stock, at cost	(10,701)	(6,201)
Total stockholders' deficit	136,760	129,173	$ 48,434	$ 44,715
Liabilities and Equity	257,200	207,510
Parent Company
Condensed Financial Statements, Captions [Line Items]
Cash Equivalents, at Carrying Value	1,242	2,133
Accounts and other receivables	2,933	2,094
Prepaid expenses and other assets	361	661
Total current assets	4,536	4,888
Restricted Cash and Cash Equivalents	1,400	1,400
Property and equipment, net	663	568
Intangible assets, net	5,356	5,076
Other Assets, Noncurrent	14,146	6,515
Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures	138,174	125,475
Total assets	164,275	143,922
Accounts Payable and Accrued Liabilities, Current	311	885
Total current liabilities	311	885
Long-term Debt, Excluding Current Maturities	26,086	12,862
Deferred tax liabilities	1,118	1,002
Total liabilities	27,515	14,749
Common Stock, Value, Outstanding	0	0
Preferred Stock, Value, Outstanding	0	0
Additional Paid-in Capital	232,731	219,838
Accumulated other comprehensive loss	250	(753)
Accumulated deficit	(85,520)	(83,711)
Treasury stock, at cost	(10,701)	(6,201)
Total stockholders' deficit	136,760	129,173
Liabilities and Equity	$ 164,275	$ 143,922