Comprehensive income (loss) (Tables)

6 Months Ended

Jun. 30, 2016

Equity [Abstract]

Comprehensive income (loss)

The after-tax changes in the components of accumulated other comprehensive loss were as follows:

Three Months Ended June 30, 2016	Net Unrealized Gain (Loss) on Derivative  Instruments  Qualifying as Hedges			Postretirement  Liability Adjustment			Foreign Currency Translation Adjustment			Net Unrealized Gain (Loss) on Available-for-sale Investments			Total Accumulated  Other Comprehensive  Loss
	(In thousands)
Balance at beginning of period	$	(2,575	)	$	(35,852	)	$	(175	)	$	20		$	(38,582	)
Other comprehensive income (loss) before reclassifications	—			—			31			(30		)	1
Amounts reclassified from accumulated other comprehensive loss	91			248			—			36			375
Net current-period other comprehensive income	91			248			31			6			376
Balance at end of period	$	(2,484	)	$	(35,604	)	$	(144	)	$	26		$	(38,206	)

Three Months Ended June 30, 2015	Net Unrealized Gain (Loss) on Derivative  Instruments  Qualifying as Hedges			Postretirement  Liability Adjustment			Foreign Currency Translation Adjustment			Net Unrealized Gain (Loss) on Available-for-sale Investments			Total Accumulated  Other Comprehensive  Loss
	(In thousands)
Balance at beginning of period	$	(2,972	)	$	(37,843	)	$	(139	)	$	30		$	(40,924	)
Other comprehensive income (loss) before reclassifications	—			—			9			(43		)	(34		)
Amounts reclassified from accumulated other comprehensive loss	100			584			—			28			712
Net current-period other comprehensive income (loss)	100			584			9			(15		)	678
Balance at end of period	$	(2,872	)	$	(37,259	)	$	(130	)	$	15		$	(40,246	)

Six Months Ended June 30, 2016	Net Unrealized Gain (Loss) on Derivative  Instruments  Qualifying as Hedges			Postretirement  Liability Adjustment			Foreign Currency Translation Adjustment			Net Unrealized Gain (Loss) on Available-for-sale Investments			Total Accumulated  Other Comprehensive  Loss
	(In thousands)
Balance at beginning of period	$	(2,667	)	$	(34,257	)	$	(200	)	$	(24	)	$	(37,148	)
Other comprehensive income (loss) before reclassifications	—			—			56			(19		)	37
Amounts reclassified from accumulated other comprehensive loss	183			(1,347		)	—			69			(1,095		)
Net current-period other comprehensive income (loss)	183			(1,347		)	56			50			(1,058		)
Balance at end of period	$	(2,484	)	$	(35,604	)	$	(144	)	$	26		$	(38,206	)

Six Months Ended June 30, 2015	Net Unrealized Gain (Loss) on Derivative  Instruments  Qualifying as Hedges			Postretirement  Liability Adjustment			Foreign Currency Translation Adjustment			Net Unrealized Gain (Loss) on Available-for-sale Investments			Total Accumulated  Other Comprehensive  Loss
	(In thousands)
Balance at beginning of period	$	(3,071	)	$	(38,218	)	$	(829	)	$	15		$	(42,103	)
Other comprehensive loss before reclassifications	—			—			(103		)	(64		)	(167		)
Amounts reclassified from accumulated other comprehensive loss	199			959			802			64			2,024
Net current-period other comprehensive income	199			959			699			—			1,857
Balance at end of period	$	(2,872	)	$	(37,259	)	$	(130	)	$	15		$	(40,246	)

Reclassification out of accumulated other comprehensive income

Reclassifications out of accumulated other comprehensive loss were as follows:

	Three Months Ended						Six Months Ended						Location on Consolidated Statements of Income
	June 30,						June 30,
	2016			2015			2016			2015
	(In thousands)
Reclassification adjustment for loss on derivative instruments included in net loss:
Interest rate derivative instruments	$	(147	)	$	(160	)	$	(297	)	$	(320	)	Interest expense
	56			60			114			121			Income taxes
	(91		)	(100		)	(183		)	(199		)
Amortization of postretirement liability gains (losses) included in net periodic benefit cost	(398		)	(1,004		)	2,166			(1,608		)	(a)
	150			420			(819		)	649			Income taxes
	(248		)	(584		)	1,347			(959		)
Reclassification adjustment for loss on foreign currency translation adjustment included in net loss	—			—			—			(1,293		)	Other income
	—			—			—			491			Income taxes
	—			—			—			(802		)
Reclassification adjustment for loss on available-for-sale investments included in net loss	(55		)	(43		)	(106		)	(98		)	Other income
	19			15			37			34			Income taxes
	(36		)	(28		)	(69		)	(64		)
Total reclassifications	$	(375	)	$	(712	)	$	1,095		$	(2,024	)

(a) Included in net periodic benefit cost. For more information, see Note 16.