Summary of Significant Accounting Policies - Additional Information (Details) - USD ($) $ in Thousands		3 Months Ended	9 Months Ended
	Oct. 27, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Oct. 01, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Debt prepayment penalty		$ 28	$ 0	$ 118
Subsequent Event | Interest Rate Swap
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Notional amount of terminated instruments	$ 100,000
Termination fees	4,730
Subsequent Event | Federal Home Loan Bank
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Prepayment of debt	150,000
Debt prepayment penalty	$ 6,123
Metropolitan Notes | Subordinated notes | Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Repurchase amount					$ 15,000
Interest rate of senior note					6.50%
FHLB Advances | Subsequent Event
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Interest rate of senior note	1.358%
FHLB Advances | Subsequent Event | London Interbank Offered Rate (LIBOR)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Basis spread on variable rate	0.50%
Basis spread floor	0.00%