Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2016

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The following table summarizes the changes within each classification of accumulated other comprehensive income (loss) (“AOCI”) net of tax for the years ended December 31, 2016, 2015, and 2014:

(dollars in thousands)	Unrealized Gains and Losses  on Available-for-Sale Securities			Unrealized Gains and Losses on Held-to-Maturity Securities			Gains and Losses on Cash Flow Hedges			Defined Benefit Pension Plans			Total
2016
Balance at January 1, 2016	$	(3,806	)	$	(14,480	)	$	(9,276	)	$	(7,235	)	$	(34,797	)
Other comprehensive income (loss) before reclassifications		(31,513	)		—			(1,440	)		—			(32,953	)
Amounts reclassified from accumulated other comprehensive income (loss) (a)		(3,693	)		1,170			4,001			6,900			8,378
Net other comprehensive income (loss)		(35,206	)		1,170			2,561			6,900			(24,575	)
Balance at December 31, 2016	$	(39,012	)	$	(13,310	)	$	(6,715	)	$	(335	)	$	(59,372	)
2015
Balance at January 1, 2015	$	(748	)	$	(15,776	)	$	(5,935	)	$	(9,096	)	$	(31,555	)
Other comprehensive income (loss) before reclassifications		554			—			(5,027	)		—			(4,473	)
Amounts reclassified from accumulated other comprehensive income (loss) (a)		(3,612	)		1,296			1,686			1,861			1,231
Net other comprehensive income (loss)		(3,058	)		1,296			(3,341	)		1,861			(3,242	)
Balance at December 31, 2015	$	(3,806	)	$	(14,480	)	$	(9,276	)	$	(7,235	)	$	(34,797	)
2014
Balance at January 1, 2014	$	(21,108	)	$	(16,767	)	$	(190	)	$	(6,401	)	$	(44,466	)
Other comprehensive income (loss) before reclassifications		26,391			—			(5,899	)		—			20,492
Amounts reclassified from accumulated other comprehensive income (loss) (a)		(6,031	)		991			154			(2,695	)		(7,581	)
Net other comprehensive income (loss)		20,360			991			(5,745	)		(2,695	)		12,911
Balance at December 31, 2014	$	(748	)	$	(15,776	)	$	(5,935	)	$	(9,096	)	$	(31,555	)

(a) See table below for details about reclassifications.

Reclassifications out of Accumulated Other Comprehensive Income (Loss)

The following tables summarize the significant amounts reclassified out of each component of AOCI for the years ended December 31, 2016, 2015, and 2014:

Details about AOCI Components	Amount Reclassified from AOCI									Affected Line Item in the Statement of Income
	Years Ended December 31,
(dollars in thousands)	2016			2015			2014
Unrealized gains and losses on available-for-sale securities	$	5,848		$	5,718		$	9,830		Net securities gains
		—			—			(100	)	Impairment losses
		5,848			5,718			9,730		Income before income taxes
		(2,155	)		(2,106	)		(3,699	)	Income tax (expense) benefit
	$	3,693		$	3,612		$	6,031		Net income
Unrealized gains and losses on held-to-maturity securities	$	(1,776	)	$	(1,692	)	$	(1,437	)	Interest income/(expense)
		606			396			446		Income tax (expense) benefit
	$	(1,170	)	$	(1,296	)	$	(991	)	Net income
Gains and losses on cash flow hedges
Interest rate contracts	$	(6,453	)	$	(2,719	)	$	(248	)	Interest income/(expense)
		2,452			1,033			94		Income tax (expense) benefit
	$	(4,001	)	$	(1,686	)	$	(154	)	Net income
Amortization of defined benefit pension items
Actuarial gains/(losses) and settlement cost	$	(11,203	)	$	(3,002	)	$	4,333		Salaries and employee benefits
		4,303			1,141			(1,638	)	Income tax (expense) benefit
	$	(6,900	)	$	(1,861	)	$	2,695		Net income
Total reclassifications for the period	$	(8,378	)	$	(1,231	)	$	7,581		Net income