Goodwill and Intangible Assets - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]
Impairment losses related to goodwill	$ 0
Amortization expense on other intangible assets	10,583,000	$ 10,909,000	$ 11,113,000
Impairment of other intangible assets	0	0
First Mortgage
Finite-Lived Intangible Assets [Line Items]
Value of servicing rights	500,000	600,000
SBA Loans
Finite-Lived Intangible Assets [Line Items]
Value of servicing rights	2,800,000	2,300,000
Other Intangible Assets
Finite-Lived Intangible Assets [Line Items]
Amortization expense on other intangible assets	10,600,000	10,900,000	$ 9,700,000
Servicing Rights | First Mortgage
Finite-Lived Intangible Assets [Line Items]
Unrealized loss on equity investments	$ (300,000)	$ (200,000)