Long-Term Debt - Additional Information (Details) - USD ($)		12 Months Ended
	Dec. 16, 2025	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Equity restructuring costs		$ 193,163,000	$ 0	$ 0
Interest expense		1,100,000
Class H Aggregator Units
Debt Instrument [Line Items]
Equity restructuring costs		162,300,000
Class X Aggregator Units
Debt Instrument [Line Items]
Equity restructuring costs		30,900,000
Credit Agreement | Line of Credit
Debt Instrument [Line Items]
Cash borrowings		0	0
Credit Agreement | Line of Credit | Revolving Credit Facility
Debt Instrument [Line Items]
Line of credit facility		20,000,000.0
Credit Agreement | Line of Credit | Standby Letters of Credit
Debt Instrument [Line Items]
Line of credit facility		$ 5,000,000.0
Floor interest rate (as percent)		5.00%
Outstanding amount		$ 1,300,000	1,300,000
Commitment fee (as percent)		1.50%
Commitment fee		$ 0	$ 0	$ 0
Capital Account Notes | AT Umbrella LLC
Debt Instrument [Line Items]
Aggregate principal amount	$ 187,800,000
Capital Account Notes | AT Umbrella LLC | Minimum
Debt Instrument [Line Items]
Debt instrument, term	2 years
Interest rate	6.31%
Capital Account Notes | AT Umbrella LLC | Maximum
Debt Instrument [Line Items]
Debt instrument, term	7 years
Interest rate	7.50%
Capital Account Notes | Notes Payable | AT Umbrella LLC
Debt Instrument [Line Items]
Aggregate principal amount	$ 187,800,000
Capital Account Notes | Notes Payable | AT Umbrella LLC | Minimum
Debt Instrument [Line Items]
Debt instrument, amortization period	2 years
Interest rate	6.31%
Capital Account Notes | Notes Payable | AT Umbrella LLC | Maximum
Debt Instrument [Line Items]
Debt instrument, amortization period	7 years
Interest rate	7.50%
Holdover Note | AT Umbrella LLC
Debt Instrument [Line Items]
Aggregate principal amount	$ 162,300,000
Debt instrument, term	8 years
Interest rate	7.63%
Holdover Note | Notes Payable | AT Umbrella LLC
Debt Instrument [Line Items]
Aggregate principal amount	$ 162,300,000
Post-service obligation payment period	7 years
Debt instrument, term	8 years
Interest rate	7.63%