Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
DEFERRED TAX ASSETS:
Accounting reserves and accruals	$ 22,371	$ 23,095
Pension plans	4,249	5,413
Deferred management rights proceeds	40,280	42,875
Federal and State net operating loss carryforwards	102,032	97,832
Tax credits and other carryforwards	8,881	5,182
Other assets	6,205	5,124
Total deferred tax assets	184,018	179,521
Valuation allowance	(5,557)	(118,015)
Total deferred tax assets, net of valuation allowance	178,461	61,506
DEFERRED TAX LIABILITIES:
Property and equipment, net	91,314	67,744
Other liabilities	5,523	6,677
Total deferred tax liabilities	96,837	74,421
Net deferred tax liabilities		$ (12,915)
Net deferred tax assets	$ 81,624