Changes in shareholders' equity (Tables)

6 Months Ended

Jun. 28, 2015

Equity [Abstract]

Reconciliation of Basic to Diluted Weighted Average Common Shares Outstanding

The following table provides a reconciliation of basic to diluted weighted average shares outstanding:

	Three Months Ended		Six Months Ended
	June 28, 2015	June 29, 2014	June 28, 2015	June 29, 2014
	(Shares in thousands)
Basic	41,560	41,380	41,514	41,321
Dilutive effect of share-based awards	473	413	470	442
Dilutive effect of 3.875% Convertible Notes and warrants	6,048	4,599	5,704	4,308
Diluted	48,081	46,392	47,688	46,071

Change in Accumulated Other Comprehensive Income (Loss)

The following tables provide information relating to the changes in accumulated other comprehensive income (loss), net of tax, for the six months ended June 28, 2015 and June 29, 2014:

	Cash Flow Hedges			Pension and Other Postretirement Benefit Plans			Foreign Currency Translation Adjustment			Accumulated Other Comprehensive (Loss) Income
	(Dollars in thousands)
Balance as of December 31, 2014	$	—		$	(141,744	)	$	(119,151	)	$	(260,895	)
Other comprehensive income (loss) before reclassifications	(922		)	300			(61,893		)	(62,515		)
Amounts reclassified from accumulated other comprehensive (loss) income	163			2,137			—			2,300
Net current-period other comprehensive income (loss)	(759		)	2,437			(61,893		)	(60,215		)
Balance at June 28, 2015	$	(759	)	$	(139,307	)	$	(181,044	)	$	(321,110	)

	Cash Flow Hedges			Pension and Other Postretirement Benefit Plans			Foreign Currency Translation Adjustment			Accumulated Other Comprehensive (Loss) Income
	(Dollars in thousands)
Balance at December 31, 2013	$	—		$	(97,037	)	$	(13,818	)	$	(110,855	)
Other comprehensive income (loss) before reclassifications	233			(256		)	5,222			5,199
Amounts reclassified from accumulated other comprehensive (loss) income	(90		)	1,498			—			1,408
Net current-period other comprehensive income	143			1,242			5,222			6,607
Balance at June 29, 2014	$	143		$	(95,795	)	$	(8,596	)	$	(104,248	)

Reclassification of Gain/Losses into Income/Expense, Net of Tax

The following table provides information relating to the reclassifications of losses/(gains) in accumulated other comprehensive (loss) income into expense/(income), net of tax, for the three and six months ended June 28, 2015 and June 29, 2014:

	Three Months Ended						Six Months Ended
	June 28, 2015			June 29, 2014			June 28, 2015			June 29, 2014
	(Dollars in thousands)
(Gains) losses on foreign exchange contracts:
Cost of goods sold	$	472		$	(52	)	$	263		$	(129	)
Total before tax	472			(52		)	263			(129		)
Tax benefit	(110		)	5			(100		)	39
Net of tax	$	362		$	(47	)	$	163		$	(90	)
Amortization of pension and other postretirement benefit items:
Actuarial losses (1)	$	1,605		$	1,103		$	3,211		$	2,205
Prior-service costs(1)	—			(6		)	—			(11		)
Total before tax	1,605			1,097			3,211			2,194
Tax expense	(564		)	(382		)	(1,074		)	(696		)
Net of tax	$	1,041		$	715		$	2,137		$	1,498
Total reclassifications, net of tax	$	1,403		$	668		$	2,300		$	1,408

(1) These accumulated other comprehensive income (loss) components are included in the computation of net benefit cost of pension and other postretirement benefit plans (see Note 12 for additional information).