Supplemental Comprehensive Income Disclosures

The following table identifies the related tax effects allocated to each component of other comprehensive income (“OCI”) in the 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 Consolidated Statements of Income.



	For the Three Months Ended March 31,
	2019							2018
	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	$	9,030	$	(1,896	)	$	7,134	$	(3,982	)	$	837	$	(3,145	)
Reclassification adjustment for gains on securities included in net income	—		—			—		(2,840		)	596		(2,244		)
Total unrealized gains (losses) on securities	9,030		(1,896		)	7,134		(6,822		)	1,433		(5,389		)
Unrealized gains (losses) on derivatives:
Unrealized holding gains (losses) on derivatives arising during the period	133		(28		)	105		(130		)	27		(103		)
Reclassification adjustment for losses on derivatives included in net income	—		—			—		—			—		—
Total unrealized gains (losses) on derivatives	133		(28		)	105		(130		)	27		(103		)
Total other comprehensive income (loss)	$	9,163	$	(1,924	)	$	7,239	$	(6,952	)	$	1,460	$	(5,492	)

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



	2019											2018
	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	$	(11,697	)	$	461	$	(105	)	$	(11,341	)	$	(6,166	)	$	299	$	(306	)	$	(6,173	)
Cumulative effect of adoption of ASU 2018-02	—			—		—			—			(1,344		)	—		—			(1,344		)
Balance at January 1	(11,697		)	461		(105		)	(11,341		)	(7,510		)	299		(306		)	(7,517		)
Other comprehensive income (loss) before reclassification adjustment	7,134			—		105			7,239			(3,145		)	—		(103		)	(3,248		)
Amounts reclassified from accumulated other comprehensive (loss) income	—			—		—			—			(2,244		)	—		—			(2,244		)
Net other comprehensive income (loss) during the period	7,134			—		105			7,239			(5,389		)	—		(103		)	(5,492		)
Balance at March 31	$	(4,563	)	$	461	$	—		$	(4,102	)	$	(12,899	)	$	299	$	(409	)	$	(13,009	)