Accumulated Other Comprehensive Loss (Tables)

3 Months Ended

Mar. 31, 2018

Equity [Abstract]

Summary of Changes in Accumulated Other Comprehensive Loss by Component

Changes in accumulated other comprehensive loss by component for the three months ended March 31, 2018 and 2017 consisted of the following (in thousands):

	Minimum Pension Liability			Other-Than- Temporary Impairment of Investment			Total
Balance, December 31, 2017	$	(20,149	)	$	(6,543	)	$	(26,692	)
Unrealized gains (losses) arising during period		—			—			—
Amounts reclassified from accumulated other comprehensive loss		(9	)		83			74
Income tax benefit		4			—			4
Net other comprehensive income (loss)		(5	)		83			78
Balance, March 31, 2018	$	(20,154	)	$	(6,460	)	$	(26,614	)
	Minimum Pension Liability			Other-Than- Temporary Impairment of Investment			Total
Balance, December 31, 2016	$	(22,268	)	$	—		$	(22,268	)
Unrealized gains arising during period		—			—			—
Amounts reclassified from accumulated other comprehensive loss		11			—			11
Income tax expense		—			—			—
Net other comprehensive income		11			—			11
Balance, March 31, 2017	$	(22,257	)	$	—		$	(22,257	)