Fair Value Measurements - Financial Assets and Financial Liabilities Measured at Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value	$ 183,302	$ 150,960
Other real estate owned	106	264
Items measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value	183,302	150,960
Equity investments	107,079	10,136
Interest rate swaps asset	45,289	10,141
Interest rate swaps liability	(45,429)	(10,708)
Items measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	106
Items measured on a non-recurring basis | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value		8,794
Loans measured for impairment based on the fair value of the underlying collateral	35,366	264
Level 1 Inputs | Items measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value	0	0
Equity investments	104,539	10,136
Interest rate swaps asset	0	0
Interest rate swaps liability	0	0
Level 1 Inputs | Items measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0
Level 1 Inputs | Items measured on a non-recurring basis | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value		0
Loans measured for impairment based on the fair value of the underlying collateral	0	0
Level 2 Inputs | Items measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value	183,302	150,935
Equity investments	0	0
Interest rate swaps asset	45,289	10,141
Interest rate swaps liability	(45,429)	(10,708)
Level 2 Inputs | Items measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	0
Level 2 Inputs | Items measured on a non-recurring basis | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value		0
Loans measured for impairment based on the fair value of the underlying collateral	0	0
Level 3 Inputs | Items measured on a recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value	0	25
Equity investments	2,540	0
Interest rate swaps asset	0	0
Interest rate swaps liability	0	0
Level 3 Inputs | Items measured on a non-recurring basis
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other real estate owned	106
Level 3 Inputs | Items measured on a non-recurring basis | Loans measured for impairment based on the fair value of the underlying collateral
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt securities, available-for sale, at fair value		8,794
Loans measured for impairment based on the fair value of the underlying collateral	$ 35,366	$ 264