Other Comprehensive Income (Loss)

6 Months Ended

Jun. 30, 2017

Equity [Abstract]

Other Comprehensive Income (Loss)

Other Comprehensive Income (Loss)

The before and after tax amounts allocated to each component of other comprehensive income (loss) are presented in the following table. Reclassification adjustments related to securities available for sale are included in net gain (loss) on securities transactions in the accompanying consolidated statements of income. Reclassification adjustments related to defined-benefit post-retirement benefit plans are included in the computation of net periodic pension expense (see Note 13 – Defined Benefit Plans).

	Three Months Ended   June 30, 2017									Three Months Ended   June 30, 2016
	Before Tax Amount			Tax  Expense, (Benefit)			Net of  Tax Amount			Before Tax Amount			Tax  Expense, (Benefit)			Net of  Tax Amount
Securities available for sale and transferred securities:
Change in net unrealized gain/loss during the period	$	90,390		$	31,636		$	58,754		$	165,288		$	57,851		$	107,437
Change in net unrealized gain on securities transferred to held to maturity	(3,860		)	(1,351		)	(2,509		)	(9,185		)	(3,215		)	(5,970		)
Reclassification adjustment for net (gains) losses included in net income	50			18			32			—			—			—
Total securities available for sale and transferred securities	86,580			30,303			56,277			156,103			54,636			101,467
Defined-benefit post-retirement benefit plans:
Change in the net actuarial gain/loss	—			—			—			(862		)	(302		)	(560		)
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)	1,358			475			883			1,740			609			1,131
Total defined-benefit post-retirement benefit plans	1,358			475			883			878			307			571
Total other comprehensive income (loss)	$	87,938		$	30,778		$	57,160		$	156,981		$	54,943		$	102,038
	Six Months Ended   June 30, 2017									Six Months Ended   June 30, 2016
	Before Tax Amount			Tax  Expense, (Benefit)			Net of  Tax Amount			Before Tax Amount			Tax  Expense, (Benefit)			Net of  Tax Amount
Securities available for sale and transferred securities:
Change in net unrealized gain/loss during the period	$	124,201		$	43,470		$	80,731		$	287,506		$	100,627		$	186,879
Change in net unrealized gain on securities transferred to held to maturity	(10,146		)	(3,551		)	(6,595		)	(17,351		)	(6,073		)	(11,278		)
Reclassification adjustment for net (gains) losses included in net income	50			18			32			(14,903		)	(5,216		)	(9,687		)
Total securities available for sale and transferred securities	114,105			39,937			74,168			255,252			89,338			165,914
Defined-benefit post-retirement benefit plans:
Change in the net actuarial gain/loss	—			—			—			(862		)	(302		)	(560		)
Reclassification adjustment for net amortization of actuarial gain/loss included in net income as a component of net periodic cost (benefit)	2,715			950			1,765			3,293			1,153			2,140
Total defined-benefit post-retirement benefit plans	2,715			950			1,765			2,431			851			1,580
Total other comprehensive income (loss)	$	116,820		$	40,887		$	75,933		$	257,683		$	90,189		$	167,494

Activity in accumulated other comprehensive income (loss), net of tax, was as follows:

	Securities Available For Sale			Defined Benefit Plans			Accumulated Other Comprehensive Income
Balance January 1, 2017	$	16,153		$	(40,776	)	$	(24,623	)
Other comprehensive income (loss) before reclassifications	74,136			—			74,136
Amounts reclassified from accumulated other comprehensive income (loss)	32			1,765			1,797
Net other comprehensive income (loss) during period	74,168			1,765			75,933
Balance at June 30, 2017	$	90,321		$	(39,011	)	$	51,310
Balance January 1, 2016	$	160,611		$	(46,748	)	$	113,863
Other comprehensive income (loss) before reclassifications	175,601			(560		)	175,041
Amounts reclassified from accumulated other comprehensive income (loss)	(9,687		)	2,140			(7,547		)
Net other comprehensive income (loss) during period	165,914			1,580			167,494
Balance at June 30, 2016	$	326,525		$	(45,168	)	$	281,357