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Composition of Certain Financial Statement Captions - Narrative (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024	Dec. 31, 2024
Items Included in Consolidated Statement of Financial Condition [Abstract]
Depreciation	$ 7,485,000	$ 8,341,000	$ 23,077,000	$ 25,097,000
Deferred contract costs	49,113,000		49,113,000		$ 45,855,000
Capitalized contract cost, amount capitalized during period	$ 5,333,000	$ 5,326,000	13,528,000	10,237,000
Amortization of deferred contract costs			9,875,000	$ 7,931,000
Capitalized contract cost impairment			$ 0

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Capitalized Contract Cost, Amount Capitalized During Period

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Amount of amortization expense for asset recognized from cost incurred to obtain or fulfill contract with customer.

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Amount of impairment loss for asset recognized from cost incurred to obtain or fulfill contract with customer.

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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The expense recognized in the current period that allocates the cost of nonproduction tangible assets over their useful lives.

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