Fair Value of Assets and Liabilities - Recurring Basis (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	$ 866,333	$ 853,649
Mortgage backed securities - Residential agency
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	711,121	707,157
Mortgage backed securities - Commercial
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	82,732	90,913
Asset backed securities
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	42	54
Corporate bonds
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	68,271	50,422
Recurring
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	866,333	853,649
Derivative instruments	5,754	3,397
Derivative liabilities	3,644	1,368
Recurring | U.S. treasury and government agencies
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	4,167	5,103
Recurring | Mortgage backed securities - Residential agency
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	711,121	707,157
Recurring | Mortgage backed securities - Commercial
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	82,732	90,913
Recurring | Asset backed securities
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	42	54
Recurring | Corporate bonds
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	68,271	50,422
Recurring | Level 2
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	866,333	853,649
Derivative instruments	5,754	3,397
Derivative liabilities	3,644	1,368
Recurring | Level 2 | U.S. treasury and government agencies
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	4,167	5,103
Recurring | Level 2 | Mortgage backed securities - Residential agency
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	711,121	707,157
Recurring | Level 2 | Mortgage backed securities - Commercial
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	82,732	90,913
Recurring | Level 2 | Asset backed securities
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	42	54
Recurring | Level 2 | Corporate bonds
Fair value, assets and liabilities measured on recurring and non recurring basis
Available-for-sale, at fair value	$ 68,271	$ 50,422