Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2017

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

Changes in Accumulated Other Comprehensive Earnings/(Loss)

The components of AOCI for 2017 are as follows:

	As of December 31, 2016			Gain (Loss) Recognized in OCI			Gain (Loss) reclassified from AOCI to income			As of December 31, 2017
Changes in fair market value of hedges:
Gross	$	116		$	264		$	(91	)	$	289
Income tax expense (benefit)	(42		)	(96		)	33			(105		)
Net	74			168			(58		)	184
Changes in unrealized pension cost:
Gross	(151,618		)	—			21,522			(130,096		)
Income tax expense (benefit)	60,672			—			(7,835		)	52,837
Net	(90,946		)	—			13,687			(77,259		)
Cumulative translation adjustment:
Gross	(2,414		)	429			—			(1,985		)
Income tax expense (benefit)	92			8			—			100
Net	(2,322		)	437			—			(1,885		)
Total accumulated other comprehensive (loss) income	$	(93,194	)	$	605		$	13,629		$	(78,960	)

The components of AOCI for 2016 are as follows:

	As of December 31, 2015			(Loss) Gain recognized in OCI			Gain (Loss) reclassified from AOCI to income			As of December 31, 2016
Changes in fair market value of hedges:
Gross	$	(768	)	$	(56	)	$	940		$	116
Income tax expense (benefit)	289			20			(351		)	(42		)
Net	(479		)	(36		)	589			74
Changes in unrealized pension cost:
Gross	(161,719		)	—			10,101			(151,618		)
Income tax expense (benefit)	64,361			—			(3,689		)	60,672
Net	(97,358		)	—			6,412			(90,946		)
Cumulative translation adjustment:
Gross	(1,279		)	(1,135		)	—			(2,414		)
Income tax expense (benefit)	111			(19		)	—			92
Net	(1,168		)	(1,154		)	—			(2,322		)
Total accumulated other comprehensive (loss) income	$	(99,005	)	$	(1,190	)	$	7,001		$	(93,194	)