CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS (Unaudited) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CONSOLIDATED CONDENSED STATEMENTS OF EARNINGS (Unaudited) [Abstract]
Revenue	$ 368,131	$ 365,640
Cost of products sold	243,623	248,503
Selling and administrative expenses	122,929	80,799
Operating income	1,579	36,338
Interest expense	4,131	4,261
(Loss) earnings before income taxes	(2,552)	32,077
Income taxes	(477)	10,638
Net (loss) earnings	$ (2,075)	$ 21,439
Average number of common shares outstanding:
Basic (in shares)	49,853	49,711
Diluted (in shares)	50,079	49,867
Earnings per common share:
Basic (in dollars per share)	$ (0.04)	$ 0.43
Diluted (in dollars per share)	$ (0.04)	$ 0.43
Dividends declared per common share (in dollars per share)	$ 0.48	$ 0.22