CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE INCOME
Net Sales	$ 214,312	$ 221,018	$ 414,898	$ 417,679
Cost of sales	144,431	146,611	281,390	280,220
Gross profit	69,881	74,407	133,508	137,459
Selling, general, and administrative expenses	57,473	53,604	110,806	101,205
Operating profit	12,408	20,803	22,702	36,254
Interest expense	1,517	1,637	3,012	3,143
Other (income) expense, net	(2,206)	(1,262)	(3,497)	937
Income before income tax expense	13,097	20,428	23,187	32,174
Income tax expense	5,209	7,373	9,225	11,862
Net income	7,888	13,055	13,962	20,312
Net earnings per share:
Basic (in dollars per share)	$ 0.17	$ 0.28	$ 0.30	$ 0.44
Diluted (in dollars per share)	$ 0.17	$ 0.28	$ 0.29	$ 0.43
Dividends per share (in dollars per share)	$ 0.12	$ 0.10	$ 0.24	$ 0.20
Weighted-average number of common shares outstanding:
Basic (in shares)	46,897,309	46,620,897	46,865,438	46,558,520
Diluted (in shares)	47,593,106	47,017,440	47,582,972	47,056,715
Net income	7,888	13,055	13,962	20,312
Other comprehensive income (loss)
Foreign currency translation adjustment	(4,686)	(5,156)	(7,211)	(2,510)
Pension and other post retirement liability adjustment, net of tax	913		1,869
Total other comprehensive income (loss), net of tax	(3,773)	(5,156)	(5,342)	(2,510)
Total comprehensive income	$ 4,115	$ 7,899	$ 8,620	$ 17,802