Borrowings - Summary of Outstanding Borrowings (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-Term	$ 5,930,990	$ 5,189,217
Weighted Average Interest Rate	2.37%	2.60%
Average Balance	$ 5,167,682	$ 4,748,871
Floating-rate borrowings
Debt Instrument [Line Items]
Long-Term	$ 1,046,857	$ 1,235,105
Weighted Average Interest Rate	1.05%	1.09%
Average Balance	$ 1,073,042	$ 1,432,446
Fixed-rate borrowings
Debt Instrument [Line Items]
Long-Term	$ 4,884,133	$ 3,954,112
Weighted Average Interest Rate	2.65%	3.08%
Average Balance	$ 4,094,640	$ 3,316,425