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Borrowings - Additional Information (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Aug. 15, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Interest expense	$ 2,000,000	$ 2,000,000	$ 3,900,000	$ 3,900,000
Long-term debt	200,000,000		200,000,000			$ 200,000,000
Series D | Senior notes
Debt Instrument [Line Items]
Long-term debt	60,000,000		60,000,000			60,000,000
Series G Senior Notes | Senior notes | Subsequent Event
Debt Instrument [Line Items]
Long-term debt					$ 50,000,000
Revolving credit agreement
Debt Instrument [Line Items]
Debt and capital lease obligations	0		0
Line of credit facility, maximum borrowing capacity	100,000,000		$ 100,000,000
Line of credit facility, unused capacity, commitment fee, percentage			0.15%
Long-term debt	0		$ 0			$ 0
Level 2
Debt Instrument [Line Items]
Borrowings fair value	$ 188,000,000.0		$ 188,000,000.0

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