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Borrowings - Contractual Maturities Repurchase Agreements and FHLB Advances for 2019 (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Long Term Debt Maturities Repayments Of Principal [Line Items]
Total long term debt	$ 421,755	$ 591,789
Repurchase agreements
Long Term Debt Maturities Repayments Of Principal [Line Items]
2021	25,000	25,000
2022	0	25,000
2023	25,000	0
2024	0	25,000
2025		0
Thereafter	0	0
Total long term debt	50,000	75,000
FHLB advances
Long Term Debt Maturities Repayments Of Principal [Line Items]
2021	95,000	145,000
2022	87,500	95,000
2023	25,000	87,500
2024	112,500	25,000
2025		112,500
Thereafter	45,000	45,000
Total long term debt	$ 365,000	$ 510,000

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