Business Acquisition - Narrative (Details) - USD ($) $ in Thousands		12 Months Ended
	Jan. 29, 2021	Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill		$ 75,717		$ 0
Initial allowance for PCD assets acquired during the period at acquisition date		30,378
Total net revenue		$ 818,630	[1]	$ 318,084	[1]	$ 758,607
Core Deposit Intangibles
Business Acquisition [Line Items]
Intangible assets, amortized period		10 years
Radius Bancorp, Inc
Business Acquisition [Line Items]
Goodwill	$ 75,717
Business combination, acquisition related costs	$ 16,000
Total net revenue		$ 73,600
Radius Bancorp, Inc | Non-PCD Loans
Business Acquisition [Line Items]
Initial allowance for PCD assets acquired during the period at acquisition date		6,900
Radius Bancorp, Inc | PCD Loans
Business Acquisition [Line Items]
Initial allowance for PCD assets acquired during the period at acquisition date		$ 12,400

[1] Prior period amounts have been reclassified to conform to the current period presentation. See “Notes to Consolidated Financial Statements – Note 1. Summary of Significant Accounting Policies” for additional information.