Summary of Significant Accounting Policies - Additional Information (Details)		12 Months Ended
	Dec. 31, 2025 USD ($) shares	Dec. 31, 2025 USD ($) segment	Dec. 31, 2024 USD ($)	Dec. 31, 2023 USD ($)
Product Information [Line Items]
Carrying amount	$ 200,000	$ 200,000	$ 200,000
Loss exposure, amount	6,900,000	$ 6,900,000	6,300,000
Number of operating segments | segment		1
Number of reportable segments | segment		1
Short-term cash equivalent investments	3,400,000	$ 3,400,000	2,900,000	$ 1,500,000
Capitalization of intangible assets	500,000	500,000	1,200,000
Amortization of capitalized implementation costs	2,100,000	2,100,000	900,000	900,000
Held to maturity debt securities		700,000	1,500,000	900,000
Allowance for expected credit losses	0	0	0
Unrealized losses for these investments attributable to credit factors	0	0	28,000
Goodwill impairment		0	0	$ 0
Goodwill accumulated impairment	0	$ 0	0
Payments are contingent upon the continued employment term		5 years
Deferred revenue, noncurrent	$ 0	$ 0	$ 0
Advertising costs		$ 0
Effect of dilutive Class X Umbrella Units (in shares) | shares	98,294,464
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date [Axis]: 2026-01-01
Product Information [Line Items]
Current portion of deferred revenue	1 year	1 year
Class X Umbrella Units
Product Information [Line Items]
Effect of dilutive Class X Umbrella Units (in shares) | shares	98,294,464
Trade Names
Product Information [Line Items]
Useful life	3 years	3 years
Intellectual property
Product Information [Line Items]
Useful life	5 years	5 years
Computer software
Product Information [Line Items]
Property, plant and equipment, useful life	3 years	3 years
Customer relationships
Product Information [Line Items]
Useful life	5 years	5 years
Andersen Tax Holdings LLC
Product Information [Line Items]
Ownership percentage	100.00%	100.00%