Leases - Narrative (Details) - USD ($) $ in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2021	Jun. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020	Jun. 01, 2020
Lessee, Lease, Description [Line Items]
Operating lease liabilities	$ 76,592			$ 76,592		$ 85,556
Operating lease right of use assets	67,586			67,586		$ 76,090
Rental income	$ 176	$ 177	$ 265	$ 528	$ 356
Opus Bank
Lessee, Lease, Description [Line Items]
Operating lease liabilities							$ 43,300
Operating lease right of use assets							42,400
Unfavorable lease liability adjustments							$ 900