Reinsurance - Additional information (Details) $ in Thousands		3 Months Ended	10 Months Ended	12 Months Ended
	Apr. 01, 2021 USD ($)	Mar. 31, 2021 USD ($) item	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($) item
Reinsurance, 2021 Program
Reinsurance Retention Policy [Line Items]
Number of placements for reinsurance programs | item				2
Reinsured risk percentage				90.00%
Number of retention layers for reinsurance policy | item		4
Amount retained	$ 2,000	$ 1,500	$ 2,000
Excess amount retained	$ 270,000		$ 33,000
Reinsurance covering non-weather losses
Reinsurance Retention Policy [Line Items]
Amount retained				$ 50
Excess amount retained				$ 500