Accumulated Other Comprehensive Loss (Tables)

9 Months Ended

Sep. 30, 2019

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-related		Other
			Other
	Postretirement		Comprehensive		Comprehensive
	Benefits		Income (Loss)		Loss
Balance, January 1, 2018	$	(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)
Other comprehensive loss before reclassification
Prior periods (see Note 5)		—		(22,050)		(22,050)
Current period		—		(7,857)		(7,857)
Amounts reclassified from accumulated other comprehensive loss		594		—		594
Net current-period other comprehensive loss		594		(29,907)		(29,313)
Balance, September 30, 2019	$	(14,062)	$	(32,871)	$	(46,933)

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

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

	Three Months Ended September 30,
	2019							2018
	Before-Tax			Tax (Provision)		Net-of-Tax		Before-Tax			Tax (Provision)		Net-of-Tax
	Amount			Benefit		Amount		Amount			Benefit		Amount
Amortization of prior service credits
and net actuarial loss	$	251	(a)	$	(52)	$	199	$	265	(a)	$	(56)	$	209
Equity in Telesat-related other
comprehensive loss:
Prior periods (see Note 5)		(14,946)			4		(14,942)		—			—		—
Current period		(1,519)			1		(1,518)		(7,115)			1,496		(5,619)
Other comprehensive loss	$	(16,214)		$	(47)	$	(16,261)	$	(6,850)		$	1,440	$	(5,410)

	Nine Months Ended September 30,
	2019							2018
	Before-Tax			Tax (Provision)		Net-of-Tax		Before-Tax			Tax		Net-of-Tax
	Amount			Benefit		Amount		Amount			Provision		Amount
Amortization of prior service credits
and net actuarial loss	$	752	(a)	$	(158)	$	594	$	797	(a)	$	(168)	$	629
Equity in Telesat-related other
comprehensive (loss) income:
Prior periods (see Note 5)		(22,056)			6		(22,050)		—			—		—
Current period		(7,859)			2		(7,857)		2,194			(461)		1,733
Other comprehensive (loss) income	$	(29,163)		$	(150)	$	(29,313)	$	2,991		$	(629)	$	2,362

(a)Reclassifications are included in other expense.