Income Taxes (Details Textual) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Percent	21.00%	21.00%	21.00%
Unused Federal operating loss carryforwards	$ 0
Unused State operating loss carryforwards	314,400
Deferred Tax Assets, Tax Credit Carryforwards, Foreign	0
Taxes Payable, Current	36,300	$ 59,300
Deferred Tax Assets, Valuation Allowance	24,882	41,083
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	16,200
Significant Change in Unrecognized Tax Benefits is Reasonably Possible, Amount of Unrecorded Benefit		2,100
Unrecognized Tax Benefits, Income Tax Penalties and Interest Expense	200	200	$ 700
Unrecognized Tax Benefits, Income Tax Penalties and Interest Accrued	1,100	1,300
LIHTC Investments
Other Tax Expense (Benefit)	33,600	28,100	20,000
Income Tax Expense [Member] | LIHTC Investments
Amortization	27,100	$ 23,500	$ 16,700
Foreign Tax Credit [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	1,900
Expires 2018 [Member]
Valuation Allowance, Deferred Tax Asset, Increase (Decrease), Amount	$ 14,300