Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2015

Compensation and Retirement Disclosure [Abstract]

Schedule of Components of Net Periodic Benefit Cost

Net periodic benefit cost of these plans for the years ended December 31, was as follows:



	2015			2014			2013
	(dollars in thousands)
Service cost	$	—		$	—		$	—
Interest cost on projected benefit obligation	62			62			62
Amortization of transition obligation	—			—			—
Gain amortization	(4		)	(29		)	(7		)
Net periodic benefit cost	$	58		$	33		$	55

Schedule of Changes in Benefit Obligations and Plan Assets

The following table sets forth the change in the benefit obligation and plan assets as of December 31:



	2015			2014
	(dollars in thousands)
Change in Benefit Obligation
Benefit obligation at beginning of year	$	1,822		$	1,644
Service cost	—			—
Interest cost	62			62
Amendments	—			—
Actuarial loss (gain)	98			284
Net benefits paid	(167		)	(168		)
Benefit obligation at end of year	1,815			1,822
Change in Plan Assets
Fair value of plan assets at beginning of year	—			—
Actual return on plan assets	—			—
Employer contributions	167			168
Net benefits paid	(167		)	(168		)
Fair value of plan assets at end of year	—			—
Funded Status at End of Year	1,815			1,822
Unrecognized transition obligation	—			—
Unrecognized net gain	15			117
Amounts recognized in retained earnings	$	1,830		$	1,939

Schedule of Amounts Recognized as Other Liabilities

As of December 31, the funded status of the plan is:



	2015		2014
	(dollars in thousands)
Amounts Recognized in the Statement of Financial Condition as Other liabilities	$	1,815	$	1,822

Schedule of Amounts Recognized in Accumulated Other Comprehensive Income

The following table identifies the related tax effects allocated to each component of other comprehensive income in the Consolidated Statements of Comprehensive Income as of December 31. Reclassification adjustments related to securities available for sale are included in the “Net securities gains” line in the Consolidated Statements of Income and reclassification adjustments related to losses on derivatives are included in the "Other operating expenses" line in the Consolidated Statements of Income.



	2015									2014									2013
	Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount			Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount
	(dollars in thousands)
Unrealized gains (losses) on securities:
Unrealized holding gains (losses) on securities arising during the period	$	2,798		$	(978	)	$	1,820		$	25,153		$	(8,803	)	$	16,350		$	(34,975	)	$	12,233		$	(22,742	)
Reclassification adjustment for losses (gains) on securities included in net income	153			(54		)	99			(550		)	193			(357		)	1,158			(405		)	753
Total unrealized gains (losses) on securities	2,951			(1,032		)	1,919			24,603			(8,610		)	15,993			(33,817		)	11,828			(21,989		)
Unrealized gains (losses) on derivatives:
Unrealized holding gains on derivatives arising during the period	450			(158		)	292			472			(165		)	307			—			—			—
Reclassification adjustment for gains on derivatives included in net income	(49		)	17			(32		)	(10		)	3			(7		)	—			—			—
Total unrealized gains on derivatives	401			(141		)	260			462			(162		)	300			—			—			—
Unrealized (losses) gains for postretirement obligations:
Transition obligation	—			—			—			—			—			—			—			—			—
Net (loss) gain	(102		)	36			(66		)	(313		)	109			(204		)	219			(77		)	142
Total unrealized (losses) gains for postretirement obligations	(102		)	36			(66		)	(313		)	109			(204		)	219			(77		)	142
Total other comprehensive income (loss)	$	3,250		$	(1,137	)	$	2,113		$	24,752		$	(8,663	)	$	16,089		$	(33,598	)	$	11,751		$	(21,847	)

The following table sets forth the amounts recognized in accumulated other comprehensive income that have not yet been recognized as components of net periodic benefit costs as of December 31:



	2015			2014			2013
	(dollars in thousands)
Amounts recognized in accumulated other comprehensive income, net of tax:
Net (gain) loss	$	(10	)	$	(76	)	$	(280	)
Transition obligation	—			—			—
Total	$	(10	)	$	(76	)	$	(280	)

Schedule of Weighted-Average Assumptions Used to Determine Benefit Obligation

Weighted-average assumptions used to determine the benefit obligation as of December 31 are as follows:



	2015		2014		2013
Weighted-average Assumptions
Discount rate	3.88	%	3.61	%	4.01	%
Health care cost trend: Initial	6.25	%	6.50	%	6.75	%
Health care cost trend: Ultimate	4.75	%	4.75	%	4.75	%
Year ultimate reached	2022		2022		2022

Schedule of Weighted-Average Assumptions Used to Determine Net Periodic Cost

Weighted-average assumptions used to determine the benefit obligation as of December 31 are as follows:



	2015		2014		2013
Weighted-average Assumptions
Discount rate	3.88	%	3.61	%	4.01	%
Health care cost trend: Initial	6.25	%	6.50	%	6.75	%
Health care cost trend: Ultimate	4.75	%	4.75	%	4.75	%
Year ultimate reached	2022		2022		2022

Weighted-average assumptions used to determine the net benefit costs as of December 31 are as follows:



	2015		2014		2013
Weighted Average Assumptions for Net Periodic Cost
Discount rate	3.61	%	4.01	%	3.31	%
Health care cost trend: Initial	6.50	%	6.75	%	7.00	%
Health care cost trend: Ultimate	4.75	%	4.75	%	4.75	%
Year ultimate reached	2022		2022		2022
Corridor	10.00	%	10.00	%	10.00	%
Recognition period for gains and losses	11.0		10.0		11.0

Schedule of Impact of One-Percentage-Point Change in Assumed Health Care Cost Trend Rates

The health care cost trend rate assumption can have a significant impact on the amounts reported for this plan. A one-percentage-point change in assumed health care cost trend rates would have the following effects:



	One-Percentage- Point Increase		One-Percentage- Point Decrease
	(dollars in thousands)
Effect on postretirement benefit obligation	$	73	$	(66	)
Effect on total of service and interest cost components	3		(2		)

Schedule of Projected Benefit Payments

As of December 31, 2015, the projected benefit payments for the next ten years are as follows:



	Projected Benefit Payments
	(dollars in thousands)
2016	$	207
2017	204
2018	190
2019	163
2020	156
2021 - 2025	656

Schedule of Amounts Recognized in Accumulated Other Comprehensive Income

The estimated costs that will be amortized from accumulated other comprehensive income into net periodic cost for 2016 are as follows (dollars in thousands):



	Postretirement Benefits
	(dollars in thousands)
Net gain	$	(4	)
Transition obligation	—
Total	$	(4	)