Income Taxes - Schedule of Deferred Tax Assets and liabilities (Detail) - USD ($) $ in Thousands	Dec. 31, 2025	Dec. 31, 2024
Income Tax Disclosure [Abstract]
Operating loss and interest deduction carryforwards	$ 334,501	$ 263,523
Depreciation	70,051	56,089
Partnership investments	143,695	112,892
Impairment and other loss reserves	66,969	101,834
Other	10,263	8,500
Total deferred tax assets	625,479	542,838
Valuation allowance	(489,604)	(418,659)
Total net deferred tax assets	135,875	124,179
Property and equipment	(149,602)	(145,835)
Net unbilled revenue	(106,088)	(82,170)
Partnership investments	(26,885)	(21,445)
Other	(4,102)	(3,450)
Total deferred tax liabilities	(286,677)	(252,900)
Net deferred tax asset (liability)	$ (150,802)	$ (128,721)