Leases - Lease Liabilities (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows paid for operating leases	$ 7,981	$ 8,848	$ 8,802
Operating cash flows paid for finance leases			10
Financing cash flows paid for finance leases	10	10	10
Right-of-use assets obtained in exchange for new lease obligations, Operating leases	$ 31,792	$ 3,796	$ 1,401
Weighted Average Remaining Lease Term, Operating leases (years)	22 years 9 months 18 days	16 years 1 month 6 days	15 years 8 months 12 days
Weighted Average Remaining Lease Term, Finance leases (years)	6 months	1 year 6 months	2 years 6 months
Weighted Average Discount Rate, Operating leases	3.01%	3.17%	3.36%
Weighted Average Discount Rate, Finance leases	6.78%	6.78%	6.78%
Operating lease right-of-use assets	$ 64,200	$ 40,200
Other assets	Other assets	Other assets
Operating lease liabilities	$ 65,804	$ 40,600
Other liabilities	Other liabilities	Other liabilities
Finance lease right-of use assets	$ 0
Premises and equipment	Premises and equipment, net	Premises and equipment, net
Finance lease liabilities	$ 0	$ 10
Long-term borrowings	Long-term borrowings	Long-term borrowings