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Consolidation Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Net income	$ 271,623	$ 178,939	$ 168,826
Unrealized holding gains (losses) arising during year	168,021	(97,284)	43,015
Non-credit portion of other-than-temporary impairments recognized in other comprehensive income	0	0	23
Amounts reclassified into net income: Held-to-maturity securities	(46)	87	(116)
Amounts reclassified into net income: Non-credit other-than-temporary impairment	0	0	68
Amounts reclassified into net income: Realized losses (gains) on available for sale securities	530	31,316	(4,537)
Total unrealized gains (losses) on investment securities	168,505	(65,881)	38,453
Net actuarial loss	(10,898)	(8,906)	(3,700)
Amounts reclassified into net income: Net actuarial loss	2,099	1,680	1,367
Total defined benefit pension and post-retirement plans	(8,799)	(7,226)	(2,333)
Other comprehensive income (loss)	159,706	(73,107)	36,120
Comprehensive income	$ 431,329	$ 105,832	$ 204,946

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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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