Balance Sheet Offsetting (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Offsetting Liabilities
Gross Amounts Recognized	$ 50,922	$ 454,204
Gross Amounts Offset	0	0
Net Amounts Presented	50,922	454,204
Gross Amounts Not Offset, Financial Instruments	0	(300,000)
Gross Amounts Not Offset, Cash Collateral	(44,231)	(150,487)
Net Amount	6,691	3,717
Repurchase agreements
Offsetting Repurchase Agreement Liabilities
Gross Amounts Recognized		300,000
Gross Amounts Offset		0
Net Amounts Presented		300,000
Gross Amounts Not Offset, Financial Instruments		(300,000)
Gross Amounts Not Offset, Cash Collateral		0
Net Amount		0
Interest rate swaps
Offsetting Assets
Gross Amounts Recognized	181,012	387,008
Gross Amounts Offset	0	0
Net Amounts Presented	181,012	387,008
Gross Amounts Not Offset, Financial Instruments	0	0
Gross Amounts Not Offset, Cash Collateral	0	0
Net Amount	181,012	387,008
Offsetting Liabilities
Gross Amounts Recognized	50,922	154,204
Gross Amounts Offset	0	0
Net Amounts Presented	50,922	154,204
Gross Amounts Not Offset, Financial Instruments	0	0
Gross Amounts Not Offset, Cash Collateral	(44,231)	(150,487)
Net Amount	$ 6,691	$ 3,717