v3.22.2.2
Supplemental Guarantor / Non-Guarantor Financial Information - Condensed Consolidating Statement Of Income (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Revenues:        
Revenues: $ 149,002 $ 122,584 $ 404,970 $ 376,002
Operating costs and expenses:        
Operations (exclusive of depreciation and amortization) 60,470 42,793 156,994 126,226
Depreciation and amortization 25,236 21,826 74,397 71,894
General and administrative 3,751 3,849 12,745 9,664
Goodwill impairment 0 0 0 11,034
Total operating costs and expenses 89,457 68,468 244,136 218,818
Operating income 59,545 54,116 160,834 157,184
Equity in earnings of subsidiaries 0 0 0 0
Equity in earnings (loss) of equity method investments (16,334) 3,689 (7,261) 8,875
Interest expense (22,965) (13,417) (56,951) (40,595)
Interest income 24,234 6,835 61,212 19,997
Gain on sales-type leases 0 0 0 24,677
Gain on sale of assets and other 494 77 640 5,994
Total other income (expense) (14,571) (2,816) (2,360) 18,948
Income before income taxes 44,974 51,300 158,474 176,132
State income tax benefit (expense) (38) 4 (83) (60)
Net income 44,936 51,304 158,391 176,072
Allocation of net income attributable to noncontrolling interests (2,985) (2,144) (10,089) (6,770)
Net income attributable to the partners 41,951 49,160 148,302 169,302
Reportable Legal Entities | Parent        
Revenues:        
Revenues: 0 0 0 0
Operating costs and expenses:        
Operations (exclusive of depreciation and amortization) 0 0 0 0
Depreciation and amortization 0 0 0 0
General and administrative 703 739 2,703 2,824
Goodwill impairment       0
Total operating costs and expenses 703 739 2,703 2,824
Operating income (703) (739) (2,703) (2,824)
Equity in earnings of subsidiaries 64,681 69,553 205,112 216,958
Equity in earnings (loss) of equity method investments 0 0 0 0
Interest expense (22,027) (12,431) (54,107) (37,609)
Interest income 0 0 0 0
Gain on sales-type leases   0   0
Gain on sale of assets and other 0 0 0 0
Total other income (expense) 42,654 57,122 151,005 179,349
Income before income taxes 41,951 56,383 148,302 176,525
State income tax benefit (expense) 0 0 0 0
Net income 41,951 56,383 148,302 176,525
Allocation of net income attributable to noncontrolling interests 0 0 0 0
Net income attributable to the partners 41,951 56,383 148,302 176,525
Reportable Legal Entities | Guarantor Restricted Subsidiaries        
Revenues:        
Revenues: 149,002 122,584 404,970 376,002
Operating costs and expenses:        
Operations (exclusive of depreciation and amortization) 59,493 42,276 154,250 124,710
Depreciation and amortization 25,236 21,826 74,397 71,894
General and administrative 3,048 3,110 10,042 6,840
Goodwill impairment       11,034
Total operating costs and expenses 87,777 67,212 238,689 214,478
Operating income 61,225 55,372 166,281 161,524
Equity in earnings of subsidiaries 1,964 260 6,062 648
Equity in earnings (loss) of equity method investments (17,117) 2,743 (9,756) 6,154
Interest expense (5,060) (1,077) (15,217) (3,077)
Interest income 24,234 6,835 61,212 19,997
Gain on sales-type leases   7,223   31,900
Gain on sale of assets and other 494 77 640 5,994
Total other income (expense) 4,515 16,061 42,941 61,616
Income before income taxes 65,740 71,433 209,222 223,140
State income tax benefit (expense) (38) 4 (83) (60)
Net income 65,702 71,437 209,139 223,080
Allocation of net income attributable to noncontrolling interests (1,021) (1,884) (4,027) (6,122)
Net income attributable to the partners 64,681 69,553 205,112 216,958
Reportable Legal Entities | Non-Guarantor Non-Restricted Subsidiaries        
Revenues:        
Revenues: 0 0 0 0
Operating costs and expenses:        
Operations (exclusive of depreciation and amortization) 977 517 2,744 1,516
Depreciation and amortization 0 0 0 0
General and administrative 0 0 0 0
Goodwill impairment       0
Total operating costs and expenses 977 517 2,744 1,516
Operating income (977) (517) (2,744) (1,516)
Equity in earnings of subsidiaries 0 0 0 0
Equity in earnings (loss) of equity method investments 783 946 2,495 2,721
Interest expense 0 0 0 0
Interest income 4,122 91 12,373 91
Gain on sales-type leases   0   0
Gain on sale of assets and other 0 0 0 0
Total other income (expense) 4,905 1,037 14,868 2,812
Income before income taxes 3,928 520 12,124 1,296
State income tax benefit (expense) 0 0 0 0
Net income 3,928 520 12,124 1,296
Allocation of net income attributable to noncontrolling interests (1,964) (260) (6,062) (648)
Net income attributable to the partners 1,964 260 6,062 648
Eliminations        
Revenues:        
Revenues: 0 0 0 0
Operating costs and expenses:        
Operations (exclusive of depreciation and amortization) 0 0 0 0
Depreciation and amortization 0 0 0 0
General and administrative 0 0 0 0
Goodwill impairment       0
Total operating costs and expenses 0 0 0 0
Operating income 0 0 0 0
Equity in earnings of subsidiaries (66,645) (69,813) (211,174) (217,606)
Equity in earnings (loss) of equity method investments 0 0 0 0
Interest expense 4,122 91 12,373 91
Interest income (4,122) (91) (12,373) (91)
Gain on sales-type leases   (7,223)   (7,223)
Gain on sale of assets and other 0 0 0 0
Total other income (expense) (66,645) (77,036) (211,174) (224,829)
Income before income taxes (66,645) (77,036) (211,174) (224,829)
State income tax benefit (expense) 0 0 0 0
Net income (66,645) (77,036) (211,174) (224,829)
Allocation of net income attributable to noncontrolling interests 0 0 0 0
Net income attributable to the partners (66,645) (77,036) (211,174) (224,829)
Affiliates        
Revenues:        
Revenues: 122,868 97,124 325,659 298,192
Affiliates | Reportable Legal Entities | Parent        
Revenues:        
Revenues: 0 0 0 0
Affiliates | Reportable Legal Entities | Guarantor Restricted Subsidiaries        
Revenues:        
Revenues: 122,868 97,124 325,659 298,192
Affiliates | Reportable Legal Entities | Non-Guarantor Non-Restricted Subsidiaries        
Revenues:        
Revenues: 0 0 0 0
Affiliates | Eliminations        
Revenues:        
Revenues: 0 0 0 0
Third parties        
Revenues:        
Revenues: 26,134 25,460 79,311 77,810
Third parties | Reportable Legal Entities | Parent        
Revenues:        
Revenues: 0 0 0 0
Third parties | Reportable Legal Entities | Guarantor Restricted Subsidiaries        
Revenues:        
Revenues: 26,134 25,460 79,311 77,810
Third parties | Reportable Legal Entities | Non-Guarantor Non-Restricted Subsidiaries        
Revenues:        
Revenues: 0 0 0 0
Third parties | Eliminations        
Revenues:        
Revenues: $ 0 $ 0 $ 0 $ 0