Accumulated Other Comprehensive Loss (Tables)

12 Months Ended

Dec. 31, 2020

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):

			Equity in
		Pension and	Telesat-related		Accumulated
	Other		Other		Other
	Post-retirement		Comprehensive		Comprehensive
	Benefits		Loss		Loss
Balance, January 1, 2019	$	(14,656)	$	(2,964)	$	(17,620)
Other comprehensive loss before reclassification		(2,307)		(35,783)		(38,090)
Amounts reclassified from accumulated other comprehensive loss		796		—		796
Net current-period other comprehensive loss		(1,511)		(35,783)		(37,294)
Balance, December 31, 2019		(16,167)		(38,747)		(54,914)
Other comprehensive loss before reclassification		(3,852)		(14,232)		(18,084)
Amounts reclassified from accumulated other comprehensive loss		1,026		—		1,026
Net current-period other comprehensive loss		(2,826)		(14,232)		(17,058)
Balance, December 31, 2020	$	(18,993)	$	(52,979)	$	(71,972)

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

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

	Before-Tax Amount			Tax Benefit (Provision)			Net-of-Tax Amount
Year ended December 31, 2020
Pension and other post-retirement benefits:
Net actuarial loss and prior service credits	$	(4,877)		$	1,025		$	(3,852)
Amortization of prior service credits and net actuarial loss		1,299	(a)		(273)			1,026
Pension and other post-retirement benefits		(3,578)			752			(2,826)
Equity in Telesat-related other comprehensive loss		(14,236)			4	(b)		(14,232)
Other comprehensive loss	$	(17,814)		$	756		$	(17,058)
Year ended December 31, 2019
Pension and other post-retirement benefits:
Net actuarial loss and prior service credits	$	(2,921)		$	614		$	(2,307)
Amortization of prior service credits and net actuarial loss		1,008	(a)		(212)			796
Pension and other post-retirement benefits		(1,913)			402			(1,511)
Equity in Telesat-related other comprehensive loss		(35,793)			10	(b)		(35,783)
Other comprehensive loss	$	(37,706)		$	412		$	(37,294)

(a) Reclassifications are included in other expenses.

(b) See Note 7, Income Taxes