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Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Net income	$ 55,435	$ 46,718	$ 133,179	$ 138,584
Unrealized holding (losses) gains arising during period	(17,036)	10,874	(103,389)	50,961
Non-credit portion of other-than-temporary impairments recognized in other comprehensive income	0	19	0	23
Amounts reclassified into net income: Held-to-maturity securities	(6)	(35)	(22)	(95)
Amounts reclassified into net income: Non-credit other than temporary impairments	0	25	0	25
Amounts reclassified into net income: Realized losses (gains) on disposals of available-for-sale securities	8,563	(4,394)	14,424	(4,638)
Total unrealized (losses) gains on investment securities	(8,479)	6,489	(88,987)	46,276
Amount reclassified into net income: Net actuarial loss	420	329	1,260	989
Total defined benefit pension and post-retirement plans	420	329	1,260	989
Other comprehensive (loss) income	(8,059)	6,818	(87,727)	47,265
Comprehensive income	$ 47,376	$ 53,536	$ 45,452	$ 185,849

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Net of tax amount of the reclassification adjustment related to held-to-maturity securities transferred from the available-for-sale category. This amount includes amortization and amounts realized from the disposal of these securities.

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