Loans and Leases (Details 13) - USD ($)	12 Months Ended			15 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	May 31, 2021
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Troubled Debt Restructuring, Premodification	$ 17,473,000	$ 56,926,000	$ 80,190,000
Loans and Leases Receivable, Impaired, Interest Lost on Nonaccrual Loans	6,300,000	4,900,000
Financing Receivable, Nonaccrual	103,778,000	61,174,000
Loan Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due		18,466,000
Financing Receivable Recorded Investment Thirty to Eighty Nine Days Past Due		55,042,000
Unfunded Commitments For Troubled Debt Restructurings	897,000	2,000,000
Financing Receivable, Troubled Debt Restructuring, Postmodification	6,556,000	36,332,000	37,441,000
Financing Receivable, Allowance for Credit Loss, Period Increase (Decrease)	200,000
Loans and Leases Receivable, Gross	28,726,016,000	23,026,308,000
Loans held for investment, net	28,609,129,000	22,941,548,000
Proceeds from Loan Originations				$ 1,650,000,000
Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Nonaccrual	5,210,000	16,213,000
Loan Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due		4,065,000
Financing Receivable Recorded Investment Thirty to Eighty Nine Days Past Due		955,000
Loans and Leases Receivable, Gross	8,297,182,000	7,888,068,000
Loans held for investment, net	8,281,962,000	7,868,051,000
Finance Receivable, Payroll Protection Program Loan | Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held for investment, net	10,200,000
Asset Based [Member] | Commercial Portfolio Segment [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Troubled Debt Restructuring, Premodification		1,987,000	17,008,000
Financing Receivable, Nonaccrual	865,000	1,464,000
Loan Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due		464,000
Financing Receivable Recorded Investment Thirty to Eighty Nine Days Past Due		0
Financing Receivable, Troubled Debt Restructuring, Postmodification		1,987,000	$ 1,741,000
Loans held for investment, net	5,140,209,000	4,075,477,000
Credit Concentration Risk [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Financing Receivable, Nonaccrual	30,800,000
Nonaccrual [Member]
Financing Receivable, Allowance for Credit Loss [Line Items]
Loan Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due	70,900,000	18,500,000
Financing Receivable Recorded Investment Thirty to Eighty Nine Days Past Due	6,800,000	6,300,000
Financing Receivable Recorded Investment Nonaccrual Status Current	$ 26,000,000	36,400,000
Nonaccrual [Member] | Credit Concentration Risk [Member] | Financing Receivable
Financing Receivable, Allowance for Credit Loss [Line Items]
Concentration Risk, Percentage	30.00%
Non Purchased Credit Impaired Loans and Leases
Financing Receivable, Allowance for Credit Loss [Line Items]
Loans held for investment, net		$ 22,941,548,000