Supplemental Guarantor / Non-Guarantor Financial Information Condensed Consolidated Balance Sheet (Details) - USD ($) $ in Thousands	Mar. 31, 2020	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2018
Current assets:
Cash and cash equivalents	$ 19,282	$ 13,287	$ 11,540	$ 3,045
Accounts receivable	54,044	68,447
Prepaid and other current assets	7,548	7,629
Total current assets	80,874	89,363
Properties and equipment, net	1,465,789	1,467,099
Net Investment in Lease, Noncurrent	134,108	134,886
Operating lease right-of-use assets	3,587	3,255
Net Investment in Lease	134,108
Investment in subsidiaries	0	0
Intangible assets, net	97,820	101,322
Goodwill	270,336	270,336
Equity method investments	123,580	120,071
Other assets	12,190	12,900
Assets	2,188,284	2,199,232
Current liabilities:
Accounts payable	25,942	34,555
Due to Affiliate	6,400	16,700
Accrued interest	4,695	13,206
Deferred revenue	10,810	10,390
Accrued property taxes	5,707	3,799
Other Sundry Liabilities, Current		2,305
Current maturities of operating leases	1,235	1,126
Current maturities of finance leases	3,238	3,224
Other current liabilities	3,065	2,305
Total current liabilities	54,692	68,605
Long-term debt	1,502,154	1,462,031
Noncurrent operating lease liabilities	2,709	2,482
Noncurrent finance lease liabilities	70,640	70,475
Other long-term liabilities	12,450	12,808
Deferred revenue	45,078	45,681
Class B unit	50,227	49,392
Equity - partners	338,159	381,103
Equity - noncontrolling interest	112,175	106,655
Total liabilities and equity	2,188,284	2,199,232
Parent
Current assets:
Cash and cash equivalents	1,722	4,790	2	2
Accounts receivable	0	0
Prepaid and other current assets	445	282
Total current assets	2,167	5,072
Properties and equipment, net	0	0
Net Investment in Lease, Noncurrent		0
Operating lease right-of-use assets	0
Net Investment in Lease	0
Investment in subsidiaries	1,837,112	1,844,812
Intangible assets, net	0	0
Goodwill	0	0
Equity method investments	0	0
Other assets	6,110	6,722
Assets	1,845,389	1,856,606
Current liabilities:
Accounts payable	0	0
Accrued interest	4,695	13,206
Deferred revenue	0	0
Accrued property taxes	0	0
Other Sundry Liabilities, Current		6
Current maturities of operating leases	0
Current maturities of finance leases	0	0
Other current liabilities	121
Total current liabilities	4,816	13,212
Long-term debt	1,502,154	1,462,031
Noncurrent operating lease liabilities	0
Noncurrent finance lease liabilities	0	0
Other long-term liabilities	260	260
Deferred revenue	0	0
Class B unit	0	0
Equity - partners	338,159	381,103
Equity - noncontrolling interest	0	0
Total liabilities and equity	1,845,389	1,856,606
Guarantor Restricted Subsidiaries
Current assets:
Cash and cash equivalents	(1,152)	(709)	8,640	0
Accounts receivable	49,018	60,229
Prepaid and other current assets	6,483	6,710
Total current assets	54,349	66,230
Properties and equipment, net	1,123,996	1,133,534
Net Investment in Lease, Noncurrent		134,886
Operating lease right-of-use assets	3,379
Net Investment in Lease	134,108
Investment in subsidiaries	277,876	275,279
Intangible assets, net	97,820	101,322
Goodwill	270,336	270,336
Equity method investments	84,526	82,987
Other assets	6,080	6,178
Assets	2,052,470	2,073,995
Current liabilities:
Accounts payable	13,363	29,895
Accrued interest	0	0
Deferred revenue	10,510	9,740
Accrued property taxes	3,845	2,737
Other Sundry Liabilities, Current		2,293
Current maturities of operating leases	1,167
Current maturities of finance leases	3,238	3,224
Other current liabilities	2,923
Total current liabilities	35,046	49,003
Long-term debt	0	0
Noncurrent operating lease liabilities	2,709
Noncurrent finance lease liabilities	70,640	70,475
Other long-term liabilities	11,658	12,150
Deferred revenue	45,078	45,681
Class B unit	50,227	49,392
Equity - partners	1,837,112	1,844,812
Equity - noncontrolling interest	0	0
Total liabilities and equity	2,052,470	2,073,995
Non-Guarantor Non-Restricted Subsidiaries
Current assets:
Cash and cash equivalents	18,712	9,206	2,898	3,043
Accounts receivable	5,988	8,549
Prepaid and other current assets	620	637
Total current assets	25,320	18,392
Properties and equipment, net	341,793	333,565
Net Investment in Lease, Noncurrent		0
Operating lease right-of-use assets	208
Net Investment in Lease	0
Investment in subsidiaries	0	0
Intangible assets, net	0	0
Goodwill	0	0
Equity method investments	39,054	37,084
Other assets	0	0
Assets	406,375	389,053
Current liabilities:
Accounts payable	13,541	4,991
Accrued interest	0	0
Deferred revenue	300	650
Accrued property taxes	1,862	1,062
Other Sundry Liabilities, Current		6
Current maturities of operating leases	68
Current maturities of finance leases	0	0
Other current liabilities	21
Total current liabilities	15,792	6,721
Long-term debt	0	0
Noncurrent operating lease liabilities	0
Noncurrent finance lease liabilities	0	0
Other long-term liabilities	532	398
Deferred revenue	0	0
Class B unit	0	0
Equity - partners	277,876	275,279
Equity - noncontrolling interest	112,175	106,655
Total liabilities and equity	406,375	389,053
Eliminations
Current assets:
Cash and cash equivalents	0	0	$ 0	$ 0
Accounts receivable	(962)	(331)
Prepaid and other current assets		0
Total current assets	(962)	(331)
Properties and equipment, net	0	0
Net Investment in Lease, Noncurrent		0
Operating lease right-of-use assets	0
Net Investment in Lease	0
Investment in subsidiaries	(2,114,988)	(2,120,091)
Intangible assets, net	0	0
Goodwill	0	0
Equity method investments	0	0
Other assets	0	0
Assets	(2,115,950)	(2,120,422)
Current liabilities:
Accounts payable	(962)	(331)
Accrued interest	0	0
Deferred revenue	0	0
Accrued property taxes	0	0
Other Sundry Liabilities, Current		0
Current maturities of operating leases	0
Current maturities of finance leases	0	0
Other current liabilities	0
Total current liabilities	(962)	(331)
Long-term debt	0	0
Noncurrent operating lease liabilities	0
Noncurrent finance lease liabilities	0	0
Other long-term liabilities	0	0
Deferred revenue	0	0
Class B unit	0	0
Equity - partners	(2,114,988)	(2,120,091)
Equity - noncontrolling interest	0	0
Total liabilities and equity	$ (2,115,950)	$ (2,120,422)