Consolidated Statements Of Income - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Income Statement [Abstract]
Net revenues	$ 590,259	$ 656,267	$ 841,446
Cost of revenues	407,144	456,935	584,426
GROSS PROFIT	183,115	199,332	257,020
Selling, general and administrative expenses	154,818	156,302	178,800
Impairment charges	208	2,502	726
Restructuring and Related Cost, Incurred Cost	17,171	14,354	12,737
OPERATING INCOME	10,918	26,174	64,757
Other (income) expense:
Interest Income (Expense), Net	3,310	2,844	2,652
Other (income) expense, net	(2,072)	902	(1,156)
TOTAL OTHER EXPENSE	1,238	3,746	1,496
INCOME BEFORE INCOME TAXES	9,680	22,428	63,261
Provision for income taxes	(421)	12,565	12,875
NET INCOME	$ 10,101	$ 9,863	$ 50,386
Earnings per common share:
Basic	$ 0.62	$ 0.59	$ 2.85
Diluted	$ 0.61	$ 0.58	$ 2.84
Weighted average number of common shares outstanding:
Basic	16,418	16,850	17,660
Diluted	16,536	16,913	17,768
Dividends paid per common share	$ 0.15	$ 0.15	$ 0.15