Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Net income		$ 14,628	$ 45,871
Unrealized gain (loss) from securities
Net unrealized holding gain from available for sale debt securities arising during the period, net of tax		79,696	32,063
Reclassification adjustment of net gain from sale of available for sale debt securities included in income, net of tax		(191)	1,417
Net unrealized gain from securities, net of reclassification adjustment		79,505	33,480
Pension plan liability adjustment:
Amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax		80	61
Pension plan liability adjustment, net		80	61
Unrealized gain from cash flow hedging instruments
Net unrealized gain in cash flow hedging instruments arising during the period, net of tax		17,977	4,810
Reclassification adjustment for net gain in cash flow hedging instruments included in income, net of tax		(722)	0
Net unrealized gain from cash flow hedging instruments, net of reclassification adjustment		17,255	4,810
Other Comprehensive Income	[1]	96,840	38,351
Total comprehensive income		$ 111,468	$ 84,222

[1] All amounts are net of tax. Amounts in parenthesis indicate debits.