Subsequent Events (Details) - USD ($)	Aug. 02, 2021	Jul. 26, 2016	Aug. 05, 2014
Subordinated Notes, 5.75%
Subsequent Event [Line Items]
Face amount			$ 70,000,000.0
Payments of debt issuance costs			$ 1,200,000
Subordinated Notes, 5.0%
Subsequent Event [Line Items]
Face amount		$ 150,000,000.0
Payments of debt issuance costs		$ 2,600,000
Subsequent Event
Subsequent Event [Line Items]
Payments of debt issuance costs	$ 1,300,000
Subsequent Event | Subordinated Notes, 5.0%
Subsequent Event [Line Items]
Payments of debt issuance costs	$ 1,300,000