Summary of Significant Accounting Policies - Additional Information (Details)	12 Months Ended
	Dec. 31, 2022 USD ($) Segment	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Number of reportable segments | Segment	4
Change in accounting principle, accounting standards update, adopted	true
Change in accounting principle, accounting standards update, adoption date	Jan. 01, 2021
Change in accounting principle, accounting standards update, immaterial effect	true
Accounting Standards Update [Extensible List]	us-gaap:AccountingStandardsUpdate201912Member
Average Annual EBITDAC, operating profit earned period maximum	3 years
Accumulated impairment losses	$ 0
Goodwill impairment loss	0	$ 0	$ 0
Long-term Debt, Fair Value	2,738,800,000	$ 2,738,800,000
Revolving and term loan	1,225,600,000
Amount written off as uncollectable from reinsurance carriers	$ 0
Minimum
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Property, Plant and Equipment, Useful Life	3 years
Finite-Lived Intangible Asset, Useful Life	3 years
Maximum
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Finite-Lived Intangible Asset, Useful Life	15 years