Other Comprehensive Income (Loss) (Tables)

6 Months Ended

Jun. 30, 2017

Equity [Abstract]

Schedule of Accumulated Other Comprehensive Income (Loss)

The tables below summarize the changes in accumulated other comprehensive income (loss) by component for the three and six months ended June 30, 2017 and 2016, net of tax:

June 30, 2017	Unrealized Gains and Losses on Available-for-Sale Securities			Postretirement Benefit Items			Total
Beginning Balance at April 1, 2017	$	(2,314	)	$	(92	)	$	(2,406	)
Other Comprehensive Income (Loss) Before Reclassification	6,566			—			6,566
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—			—			—
Net Current Period Other Comprehensive Income (Loss)	6,566			—			6,566
Ending Balance at June 30, 2017	$	4,252		$	(92	)	$	4,160

June 30, 2017	Unrealized Gains and Losses on Available-for-Sale Securities			Postretirement Benefit Items			Total
Beginning Balance at January 1, 2017	$	(6,312	)	$	(92	)	$	(6,404	)
Other Comprehensive Income (Loss) Before Reclassification	10,564			—			10,564
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	—			—			—
Net Current Period Other Comprehensive Income (Loss)	10,564			—			10,564
Ending Balance at June 30, 2017	$	4,252		$	(92	)	$	4,160

June 30, 2016	Unrealized Gains and Losses on Available-for-Sale Securities			Postretirement Benefit Items			Total
Beginning Balance at April 1, 2016	$	7,919		$	(78	)	$	7,841
Other Comprehensive Income (Loss) Before Reclassification	3,983			—			3,983
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	(629		)	—			(629		)
Net Current Period Other Comprehensive Income (Loss)	3,354			—			3,354
Ending Balance at June 30, 2016	$	11,273		$	(78	)	$	11,195

June 30, 2016	Unrealized Gains and Losses on Available-for-Sale Securities			Postretirement Benefit Items			Total
Beginning Balance at January 1, 2016	$	3,890		$	(78	)	$	3,812
Other Comprehensive Income (Loss) Before Reclassification	8,012			—			8,012
Amounts Reclassified from Accumulated Other Comprehensive Income (Loss)	(629		)	—			(629		)
Net Current Period Other Comprehensive Income (Loss)	7,383			—			7,383
Ending Balance at June 30, 2016	$	11,273		$	(78	)	$	11,195

Classifications Out of Accumulated Other Comprehensive Income (Loss)

The tables below summarize the classifications out of accumulated other comprehensive income (loss) by component for the three and six months ended June 30, 2017 and 2016:

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified From Accumulated Other Comprehensive Income (Loss)		Affected Line Item in the Statement Where Net Income is Presented
Unrealized Gains and Losses on Available-for-Sale Securities	$	—	Net Gains on Securities
	—		Income Tax Expense
	—		Net of Tax
Total Reclassifications for the Three Months Ended June 30, 2017	$	—

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified From Accumulated Other Comprehensive Income (Loss)		Affected Line Item in the Statement Where Net Income is Presented
Unrealized Gains and Losses on Available-for-Sale Securities	$	—	Net Gains on Securities
	—		Income Tax Expense
	—		Net of Tax
Total Reclassifications for the Six Months Ended June 30, 2017	$	—

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified From Accumulated Other Comprehensive Income (Loss)			Affected Line Item in the Statement Where Net Income is Presented
Unrealized Gains and Losses on Available-for-Sale Securities	$	968		Net Gains on Securities
	(339		)	Income Tax Expense
	629			Net of Tax
Total Reclassifications for the Three Months Ended June 30, 2016	$	629

Details about Accumulated Other Comprehensive Income (Loss) Components	Amount Reclassified From Accumulated Other Comprehensive Income (Loss)			Affected Line Item in the Statement Where Net Income is Presented
Unrealized Gains and Losses on Available-for-Sale Securities	$	968		Net Gains on Securities
	(339		)	Income Tax Expense
	629			Net of Tax
Total Reclassifications for the Six Months Ended June 30, 2016	$	629