Accumulated Other Comprehensive Income (Tables)

3 Months Ended

Mar. 31, 2018

Other Comprehensive Income (Loss), Net of Tax [Abstract]

Schedule Of Changes In Balances Of Each Component Of Accumulated Other Comprehensive Income, Net Of Tax

The following tables provide changes in the balances of each component of accumulated other comprehensive income, net of tax, for the periods ended March 31, 2018 and 2017:

Three Months Ended March 31, 2018 (in thousands)	Unrealized Gains and Losses On Available-for-Sale Securities			Postretirement Benefits Plans			Total
Beginning balance at January 1	$	16,003		$	(58	)	$	15,945
Cumulative effect adjustment for adoption of new accounting standards	(13,616		)	(11		)	(13,627		)
Other comprehensive loss before reclassifications	(1,309		)	—			(1,309		)
Amounts reclassified from accumulated other comprehensive income	—			—			—
Net current-period other comprehensive loss	(1,309		)	—			(1,309		)
Ending balance	$	1,078		$	(69	)	$	1,009

Three Months Ended March 31, 2017 (in thousands)	Unrealized Gains and Losses On Available-for-Sale Securities			Postretirement Benefits Plans			Total
Beginning balance at January 1	$	11,870		$	(109	)	$	11,761
Other comprehensive income before reclassifications	1,097			—			1,097
Amounts reclassified from accumulated other comprehensive income	(58		)	1			(57		)
Net current-period other comprehensive income	1,039			1			1,040
Ending balance	$	12,909		$	(108	)	$	12,801

Schedule Of Reclassification Out Of Accumulated Other Comprehensive Income

The following tables provide significant amounts reclassified out of each component of accumulated other comprehensive income for the periods ended March 31, 2018 and 2017:

Three Months Ended March 31, 2018 (in thousands)
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income		Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities:
Net realized gain on investments	$	—
Other-than-temporary impairments	—
Total	$	—	Net realized investment gains
Tax	—		Provision for Income Taxes
Net of Tax	$	—
Amortization related to postretirement benefit plans:
Prior year service cost	$	—
Unrecognized loss	—
Total	$	—	(a)
Tax	—		Provision for Income Taxes
Net of Tax	$	—
Reclassifications for the period	$	—

Three Months Ended March 31, 2017 (in thousands)
Details about Accumulated Other Comprehensive Income Components	Amount Reclassified from Accumulated Other Comprehensive Income			Affected Line Item in the Consolidated Statements of Income
Unrealized gains and losses on available-for-sale securities:
Net realized gain on investments	$	90
Other-than-temporary impairments	—
Total	$	90		Net realized investment gains
Tax	(32		)	Provision for Income Taxes
Net of Tax	$	58
Amortization related to postretirement benefit plans:
Prior year service cost	$	—
Unrecognized loss	(2		)
Total	$	(2	)	(a)
Tax	1			Provision for Income Taxes
Net of Tax	$	(1	)
Reclassifications for the period	$	57

(a) These accumulated other comprehensive income components are not reclassified to net income in their entirety in the same reporting period. The amounts are presented within personnel costs on the Consolidated Statements of Income as amortized. Amortization and accretion related to postretirement benefit plans is included in the computation of net periodic pension costs, as discussed in Note 5.