Supplemental Comprehensive Income Disclosures

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



	For the Three Months Ended March 31,
	2018								2017
	Pretax Amount			Tax (Expense) Benefit		Net of Tax Amount			Pretax Amount			Tax (Expense) Benefit			Net of Tax Amount
	(dollars in thousands)
Unrealized (losses) gains on securities:
Unrealized holding (losses) gains on securities arising during the period	$	(3,982	)	$	837	$	(3,145	)	$	2,543		$	(890	)	$	1,653
Reclassification adjustment for gains on securities included in net income	(2,840		)	596		(2,244		)	(652		)	228			(424		)
Total unrealized (losses) gains on securities	(6,822		)	1,433		(5,389		)	1,891			(662		)	1,229
Unrealized losses on derivatives:
Unrealized holding losses on derivatives arising during the period	(130		)	27		(103		)	(516		)	181			(335		)
Reclassification adjustment for losses on derivatives included in net income	—			—		—			78			(28		)	50
Total unrealized losses on derivatives	(130		)	27		(103		)	(438		)	153			(285		)
Total other comprehensive (loss) income	$	(6,952	)	$	1,460	$	(5,492	)	$	1,453		$	(509	)	$	944

The following table details the change in components of OCI for the three months ended March 31:



	2018											2017
	Securities Available for Sale			Post-Retirement Obligation		Derivatives			Accumulated Other Comprehensive Income (Loss)			Securities Available for Sale			Post-Retirement Obligation		Derivatives			Accumulated Other Comprehensive Income (Loss)
	(dollars in thousands)
Balance at December 31	$	(6,166	)	$	299	$	(306	)	$	(6,173	)	$	(7,455	)	$	225	$	203		$	(7,027	)
Cumulative effect of adoption of ASU 2018-02	(1,344		)	—		—			(1,344		)	—			—		—			—
Balance at January 1	(7,510		)	299		(306		)	(7,517		)	(7,455		)	225		203			(7,027		)
Other comprehensive (loss) income before reclassification adjustment	(3,145		)	—		(103		)	(3,248		)	1,653			—		(335		)	1,318
Amounts reclassified from accumulated other comprehensive (loss) income	(2,244		)	—		—			(2,244		)	(424		)	—		50			(374		)
Net other comprehensive (loss) income during the period	(5,389		)	—		(103		)	(5,492		)	1,229			—		(285		)	944
Balance at March 31	$	(12,899	)	$	299	$	(409	)	$	(13,009	)	$	(6,226	)	$	225	$	(82	)	$	(6,083	)