Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2018

Accumulated Other Comprehensive Loss [Abstract]

Components of Accumulated Other Comprehensive Loss

The components of accumulated other comprehensive loss, net of tax, are as follows (in thousands):

			Proportionate
			Share of		Accumulated
			Telesat Other		Other
	Postretirement		Comprehensive		Comprehensive
	Benefits		Income (Loss)		Loss
Balance, January 1, 2017	$	(14,074)	$	238	$	(13,836)
Other comprehensive loss before reclassification		(1,365)		(18,280)		(19,645)
Amounts reclassified from accumulated other comprehensive loss		671		—		671
Net current-period other comprehensive loss		(694)		(18,280)		(18,974)
Tax Cuts and Jobs Act, reclassification of tax effect from accumulated other comprehensive loss to accumulated deficit		(1,686)		(2,782)		(4,468)
Balance, December 31, 2017		(16,454)		(20,824)		(37,278)
Other comprehensive income before reclassification		953		22,033		22,986
Amounts reclassified from accumulated other comprehensive loss		845		—		845
Net current-period other comprehensive income		1,798		22,033		23,831
Tax Cuts and Jobs Act, reclassification of tax effect from accumulated other comprehensive loss to accumulated deficit		—		(4,173)		(4,173)
Balance, December 31, 2018	$	(14,656)	$	(2,964)	$	(17,620)

Schedule of Other Comprehensive Income (Loss) and Related Income Tax Effects

The components of other comprehensive income (loss) and related tax effects are as follows (in thousands):

	Before-Tax Amount			Tax (Provision) Benefit			Net-of-Tax Amount
Year ended December 31, 2018
Postretirement Benefits:
Net actuarial gain and prior service credits	$	1,208		$	(255)		$	953
Amortization of prior service credits and net actuarial loss		1,071	(a)		(226)			845
Postretirement benefits		2,279			(481)			1,798
Proportionate share of Telesat other comprehensive income		22,033			—	(b)		22,033
Other comprehensive income	$	24,312		$	(481)		$	23,831
Year ended December 31, 2017
Postretirement Benefits:
Net actuarial loss and prior service credits	$	(2,101)		$	736		$	(1,365)
Amortization of prior service credits and net actuarial loss		1,033	(a)		(362)			671
Postretirement benefits		(1,068)			374			(694)
Proportionate share of Telesat other comprehensive loss		(28,132)			9,852			(18,280)
Other comprehensive loss	$	(29,200)		$	10,226		$	(18,974)

(a) Reclassifications are included in other expenses.

(b) See Note 7, Income Taxes