Other Comprehensive Income (Loss) (Tables)

3 Months Ended

Mar. 31, 2021

Equity [Abstract]

Changes in the components of other comprehensive income

Changes in the components of other comprehensive income, net of tax, were as follows for the periods presented:

	Pre-Tax		Tax Expense (Benefit)		Net of Tax
Three months ended March 31, 2021
Securities available for sale:
Unrealized holding losses on securities	$	(20,044)	$	(5,101)	$	(14,943)
Reclassification adjustment for gains realized in net income	(1,357)		(345)		(1,012)
Total securities available for sale	(21,401)		(5,446)		(15,955)
Derivative instruments:
Unrealized holding gains on derivative instruments	14,734		3,750		10,984
Total derivative instruments	14,734		3,750		10,984
Defined benefit pension and post-retirement benefit plans:
Amortization of net actuarial loss recognized in net periodic pension cost	54		12		42
Total defined benefit pension and post-retirement benefit plans	54		12		42
Total other comprehensive loss	$	(6,613)	$	(1,684)	$	(4,929)
Three months ended March 31, 2020
Securities available for sale:
Unrealized holding gains on securities	$	22,389	$	5,695	$	16,694
Total securities available for sale	22,389		5,695		16,694
Derivative instruments:
Unrealized holding losses on derivative instruments	(4,028)		(1,025)		(3,003)
Total derivative instruments	(4,028)		(1,025)		(3,003)
Defined benefit pension and post-retirement benefit plans:
Amortization of net actuarial loss recognized in net periodic pension cost	62		16		46
Total defined benefit pension and post-retirement benefit plans	62		16		46
Total other comprehensive income	$	18,423	$	4,686	$	13,737

Accumulated balances for each component of other comprehensive income, net of tax

The accumulated balances for each component of other comprehensive income, net of tax, were as follows as of the dates presented:

	March 31, 2021		December 31, 2020
Unrealized gains on securities	$	14,972	$	42,246
Non-credit related portion of previously recorded other-than-temporary impairment on securities	—		(11,319)
Unrealized gains (losses) on derivative instruments	10,346		(638)
Unrecognized losses on defined benefit pension and post-retirement benefit plans obligations	(5,179)		(5,221)
Total accumulated other comprehensive income	$	20,139	$	25,068