Shareholders' Equity (Tables)

12 Months Ended

Dec. 31, 2016

Stockholders' Equity Note [Abstract]

Schedule of minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts and ratios for the Company and the Bank

The table below sets forth the minimum required capital amounts and ratios for well capitalized institutions and the actual capital amounts and ratios for the Company and the Bank as of December 31, 2016 and 2015:



(dollars in thousands)	Well Capitalized Minimum Ratio		Company			Bank
As of December 31, 2016
Shareholders’ Equity			$	1,161,537		$	1,094,461
Common Equity Tier 1 Capital			1,168,228			1,111,525
Tier 1 Capital			1,168,228			1,111,525
Total Capital			1,278,528			1,221,683
Common Equity Tier 1 Capital Ratio	6.5	%	13.24		%	12.61		%
Tier 1 Capital Ratio	8.0	%	13.24		%	12.61		%
Total Capital Ratio	10.0	%	14.49		%	13.86		%
Tier 1 Leverage Ratio	5.0	%	7.21		%	6.86		%

As of December 31, 2015
Shareholders’ Equity			$	1,116,260		$	1,036,355
Common Equity Tier 1 Capital			1,112,598			1,043,070
Tier 1 Capital			1,112,598			1,043,070
Total Capital			1,212,245			1,142,573
Common Equity Tier 1 Capital Ratio	6.5	%	13.97		%	13.12		%
Tier 1 Capital Ratio	8.0	%	13.97		%	13.12		%
Total Capital Ratio	10.0	%	15.22		%	14.37		%
Tier 1 Leverage Ratio	5.0	%	7.26		%	6.81		%

Components of other comprehensive income

The following table presents the components of other comprehensive income (loss), net of tax:



(dollars in thousands)	Before Tax			Tax Effect			Net of Tax
Year Ended December 31, 2016
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	(18,647	)	$	(7,358	)	$	(11,289	)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹	1,605			634			971
Net Unrealized Gains (Losses) on Investment Securities	(17,042		)	(6,724		)	(10,318		)
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period	(954		)	(377		)	(577		)
Amortization of Net Actuarial Losses (Gains)	1,224			483			741
Amortization of Prior Service Credit	(322		)	(127		)	(195		)
Defined Benefit Plans, Net	(52		)	(21		)	(31		)
Other Comprehensive Income (Loss)	$	(17,094	)	$	(6,745	)	$	(10,349	)

Year Ended December 31, 2015
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	(5,448	)	$	(2,138	)	$	(3,310	)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
(Gain) Loss on Sale	(190		)	(75		)	(115		)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹	2,136			836			1,300
Net Unrealized Gains (Losses) on Investment Securities	(3,502		)	(1,377		)	(2,125		)
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period	7,335			2,869			4,466
Amortization of Net Actuarial Losses (Gains)	1,624			641			983
Amortization of Prior Service Credit	(322		)	(127		)	(195		)
Defined Benefit Plans, Net	8,637			3,383			5,254
Other Comprehensive Income (Loss)	$	5,135		$	2,006		$	3,129

Year Ended December 31, 2014
Net Unrealized Gains (Losses) on Investment Securities:
Net Unrealized Gains (Losses) Arising During the Period	$	28,609		$	11,286		$	17,323
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss) that (Increase) Decrease Net Income:
(Gain) Loss on Sale	(64		)	(25		)	(39		)
Amortization of Unrealized Holding (Gains) Losses on Held-to-Maturity Securities ¹	(703		)	(277		)	(426		)
Net Unrealized Gains (Losses) on Investment Securities	27,842			10,984			16,858
Defined Benefit Plans:
Net Actuarial Gains (Losses) Arising During the Period	(20,286		)	(8,000		)	(12,286		)
Amortization of Net Actuarial Losses (Gains)	1,256			496			760
Amortization of Prior Service Credit	(322		)	(127		)	(195		)
Defined Benefit Plans, Net	(19,352		)	(7,631		)	(11,721		)
Other Comprehensive Income (Loss)	$	8,490		$	3,353		$	5,137


¹	The amount relates to the amortization/accretion of unrealized gains and losses related to the Company's reclassification of available-for-sale investment securities to the held-to-maturity category.

Schedule of accumulated other comprehensive income (loss)

The following table presents the changes in each component of accumulated other comprehensive income (loss), net of tax:



(dollars in thousands)	Investment Securities-Available-For-Sale			Investment Securities-Held-To-Maturities			Defined Benefit Plans			Accumulated Other Comprehensive Income (Loss)
Year Ended December 31, 2016
Balance at Beginning of Period	$	12,559		$	(7,255	)	$	(28,861	)	$	(23,557	)
Other Comprehensive Income (Loss) Before Reclassifications	(11,289		)	—			(577		)	(11,866		)
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—			971			546			1,517
Total Other Comprehensive Income (Loss)	(11,289		)	971			(31		)	(10,349		)
Balance at End of Period	$	1,270		$	(6,284	)	$	(28,892	)	$	(33,906	)

Year Ended December 31, 2015
Balance at Beginning Period	$	15,984		$	(8,555	)	$	(34,115	)	$	(26,686	)
Other Comprehensive Income (Loss) Before Reclassifications	(3,310		)	—			4,466			1,156
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	(115		)	1,300			788			1,973
Total Other Comprehensive Income (Loss)	(3,425		)	1,300			5,254			3,129
Balance at End of Period	$	12,559		$	(7,255	)	$	(28,861	)	$	(23,557	)

Year Ended December 31, 2014
Balance at Beginning Period	$	(1,300	)	$	(8,129	)	$	(22,394	)	$	(31,823	)
Other Comprehensive Income (Loss) Before Reclassifications	17,323			—			(12,286		)	5,037
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	(39		)	(426		)	565			100
Total Other Comprehensive Income (Loss)	17,284			(426		)	(11,721		)	5,137
Balance at End of Period	$	15,984		$	(8,555	)	$	(34,115	)	$	(26,686	)

Reclassification out of accumulated other comprehensive income



The following table presents the amounts reclassified out of each component of accumulated other comprehensive income (loss):
Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified from Accumulated Other Comprehensive Income (Loss)¹									Affected Line Item in the Statement Where Net Income Is Presented
(dollars in thousands)	Year Ended December 31,
	2016			2015			2014
Amortization of Unrealized Holding Gains (Losses) on Investment Securities Held-to-Maturity	$	(1,605	)	$	(2,136	)	$	703		Interest Income
	634			836			(277		)	Provision for Income Tax
	(971		)	(1,300		)	426			Net of Tax
Sales of Investment Securities Available-for-Sale	—			190			64			Investment Securities Gains (Losses), Net
	—			(75		)	(25		)	Provision for Income Tax
	—			115			39			Net of Tax

Amortization of Defined Benefit Plans Items
Prior Service Credit ²	322			322			322
Net Actuarial Losses²	(1,224		)	(1,624		)	(1,256		)
	(902		)	(1,302		)	(934		)	Total Before Tax
	356			514			369			Provision for Income Tax
	(546		)	(788		)	(565		)	Net of Tax

Total Reclassifications for the Period	$	(1,517	)	$	(1,973	)	$	(100	)	Net of Tax


¹	Amounts in parentheses indicate reductions to net income.


²	These accumulated other comprehensive income (loss) components are included in the computation of net periodic benefit cost and are included in Salaries and Benefits on the consolidated statements of income. See Note 14 Employee Benefits for additional details.