Condensed Consolidated Statements of Comprehensive Earnings - Unaudited - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 27, 2015	Sep. 28, 2014
CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE EARNINGS UNAUDITED
Net earnings (loss)	$ (4,760)	$ 8,117	$ 20,607	$ 19,558
Other comprehensive (loss) earnings:
Changes in fair market value of hedges, net of tax	(17)	153	(34)	26
Changes in unrealized pension cost, net of tax	1,336	1,036	3,299	2,857
Cumulative translation adjustment, net of tax	(1,204)	(981)	(817)	(160)
Other comprehensive earnings	115	208	2,448	2,723
Comprehensive (loss) earnings	$ (4,645)	$ 8,325	$ 23,055	$ 22,281