Income Taxes - Additional Information (Detail) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2025		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Income Tax [Line Items]
Effective tax rate	23.58%	[1]	2.24%	(24.92%)
Impairment charges related to Goodwill			$ 12,500	$ 17,800
Deferred Tax Assets, Capital Loss Carryforwards	$ 14,146		412,392
Income Tax Expense (Benefit)	51,044	[1]	(2,272)	12,049
Income tax expense for excess tax deficiencies	800		1,800	1,900
Net operating loss carryforwards for federal and state tax	355,600		72,300	56,400
Operating loss carryforwards subject to expiration	23,100
Expiring Capital Loss Carryforwards	398,200
Operating loss carryforwards not subject to expiration	332,500
Uncertain tax position liability	1,023		2,402	2,449	$ 2,838
Unrecognized tax benefits that would impact effective tax rate	1,000
Company's accrued liability for interest and penalties related to income tax liabilities	$ 300		500
Federal and state income tax examinations	2024
Net deferred tax assets	$ 16,898		69,609
Capital losses incurred	70,500
Capital loss carryforwards	59,300
Income Tax , Penalties and Interest Expense	$ 200		$ 300	$ 200
Federal tax rate	21.00%	[1]	21.00%	21.00%
Increase in net deferred tax assets	$ 52,700
Increase Decrease In Uncollectible Accounts	116,200
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 395,700
Income tax paid			$ 4,700	$ 30,800
State and Local
Income Tax [Line Items]
Expiration period of operating loss carryforwards	2033
Capital losses incurred	$ 398,200
Foreign
Income Tax [Line Items]
Expiration period of operating loss carryforwards	2045
Minimum [Member]
Income Tax [Line Items]
Expiration period of operating loss carryforwards	2026
Maximum [Member]
Income Tax [Line Items]
Expiration period of operating loss carryforwards	2029

[1] This table has been presented in conformity with new accounting guidance for income tax disclosures. See Note 2 - Summary of Significant Accounting Policies for more information.