Repurchase Agreements (Details) $ in Thousands	3 Months Ended	12 Months Ended
	Mar. 31, 2022 USD ($) Security	Dec. 31, 2021 USD ($) Security
Repurchase Agreements [Abstract]
Weighted average of remaining maturities days	33 days	38 days
Repurchase Agreement Characteristics Remaining Maturities [Abstract]
Less than one month, repurchase agreements	$ 396,958	$ 291,007
One to three months, repurchase agreements	367,927	574,487
Total repurchase agreements	$ 764,885	$ 865,494
Repurchase Agreement Characteristics, Weighted Average Rates [Abstract]
Less than one month, weighted average rate	0.33%	0.13%
One to three months, weighted average rate	0.46%	0.14%
Weighted average rate	0.39%	0.14%
Number of overnight or demand securities | Security	0	0