CONSOLIDATED STATEMENTS OF EARNINGS - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
CONSOLIDATED STATEMENTS OF EARNINGS [Abstract]
Revenue	$ 1,383,210	$ 1,375,964	$ 1,447,821
Cost of products sold	907,783	921,531	959,311
Selling and administrative expenses	289,818	288,092	357,845
Operating income	185,609	166,341	130,665
Interest expense	18,324	16,945	16,067
Earnings before income taxes	167,285	149,396	114,598
Income taxes	44,372	42,149	32,827
Earnings from continuing operations	122,913	107,247	81,771
Gain (Loss) from discontinued operations, net of tax	3,343	(462)	(8,125)
Net earnings	$ 126,256	$ 106,785	$ 73,646
Basic:
Continuing operations (in dollars per share)	$ 2.76	$ 2.34	$ 1.69
Discontinued operations (in dollars per share)	0.08	(0.01)	(0.17)
Earnings per common share (in dollars per share)	2.84	2.33	1.52
Diluted:
Continuing operations (in dollars per share)	2.74	2.32	1.67
Discontinued operations (in dollars per share)	0.07	(0.01)	(0.17)
Earnings per common share (in dollars per share)	$ 2.82	$ 2.31	$ 1.51
Weighted average number of common shares outstanding:
Basic (in shares)	44,523	45,910	48,525
Diluted (in shares)	44,843	46,204	48,819