Loans and Allowance for Credit Losses - Industry Classification System (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Lessors of nonresidential buildings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding Principal Balances	$ 4,672,499
Unfunded Commitments	1,545,847
Total exposure	6,218,346	$ 7,058,045
Lessors of residential buildings
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding Principal Balances	1,793,549
Unfunded Commitments	1,296,827
Total exposure	3,090,376	3,725,186
New Housing For-Sale Builders
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding Principal Balances	547,566
Unfunded Commitments	918,711
Total exposure	1,466,277	1,763,089
Music Publishers
Accounts, Notes, Loans and Financing Receivable [Line Items]
Outstanding Principal Balances	744,947
Unfunded Commitments	477,077
Total exposure	$ 1,222,024	$ 1,127,636