CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
CONSOLIDATED STATEMENTS OF EARNINGS [Abstract]
Revenue	$ 1,375,964	$ 1,447,821	$ 1,462,126
Cost of products sold	921,531	959,311	987,080
Selling and administrative expenses	288,092	357,845	301,266
Operating income	166,341	130,665	173,780
Interest expense	16,945	16,067	16,147
Earnings before income taxes	149,396	114,598	157,633
Income taxes	42,149	32,827	43,335
Earnings from continuing operations	107,247	81,771	114,298
Loss from discontinued operations, net of tax	(462)	(8,125)	(1,003)
Net earnings	$ 106,785	$ 73,646	$ 113,295
Basic:
Continuing operations (in dollars per share)	$ 2.34	$ 1.69	$ 2.30
Discontinued operations (in dollars per share)	(0.01)	(0.17)	(0.02)
Earnings per common share (in dollars per share)	2.33	1.52	2.28
Diluted:
Continuing operations (in dollars per share)	2.32	1.67	2.29
Discontinued operations (in dollars per share)	(0.01)	(0.17)	(0.02)
Earnings per common share (in dollars per share)	$ 2.31	$ 1.51	$ 2.27
Weighted average number of common shares outstanding:
Basic (in shares)	45,910	48,525	49,755
Diluted (in shares)	46,204	48,819	49,934