Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Net income		$ 36,582	$ 51,724	$ 51,210	$ 97,595
Unrealized gain from securities
Net unrealized holding gain from available for sale debt securities arising during the period, net of tax		42,860	37,029	122,556	71,926
Reclassification adjustment of net gain from sale of available for sale debt securities included in income, net of tax		0	(219)	(191)	(1,636)
Net unrealized gain from securities, net of reclassification adjustment		42,860	36,810	122,365	70,290
Pension plan liability adjustment:
Amortization of unrecognized net actuarial loss included in net periodic pension cost, net of tax		79	61	159	122
Pension plan liability adjustment, net		79	61	159	122
Unrealized gain from cash flow hedging instruments
Net unrealized gain in cash flow hedging instruments arising during the period, net of tax		2,611	7,233	20,588	12,043
Reclassification adjustment for net gain in cash flow hedging instruments included in income, net of tax		(1,680)	0	(2,402)	0
Net unrealized gain from cash flow hedging instruments, net of reclassification adjustment		931	7,233	18,186	12,043
Other Comprehensive Income	[1]	43,870	44,104	140,710	82,455
Total comprehensive income		$ 80,452	$ 95,828	$ 191,920	$ 180,050

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