Consolidated Statements Of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
OPERATING ACTIVITIES
Net income	$ 10,101	$ 9,863	$ 50,386
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation	13,304	14,254	16,446
Amortization	12,316	9,681	3,116
Bad debt expense	2,330	2,561	7,817
Provision Bankruptcy Settlement	9,297	15,404	12,993
Intangible impairment charges	208	2,502	726
Compensation expense of share-based plans	5,545	6,579	7,188
Tax effect of share-based compensation	145	(134)	(756)
Pension Settlement charge	4,457	0	0
Deferred income taxes	(10,737)	781	(2,740)
Loss (gain) on property, plant and equipment	3,708	305	(79)
(Gain) loss on sale of businesses	0	(1,044)	3,413
Changes in operating assets and liabilities, net of effects from business acquisitions:
Trade accounts receivable	18,536	20,393	(38,439)
Inventories	36,092	(14,446)	(16,945)
Prepaid expenses and other assets	2,454	(4,786)	884
Accounts payable, accrued expenses and other liabilities	(48,357)	(34,771)	26,816
Net cash provided by (used in) operating activities	59,399	27,142	70,826
INVESTING ACTIVITIES
Additions to property, plant and equipment	(14,692)	(12,711)	(12,810)
Proceeds from the sale of property, plant and equipment	1,700	2,209	791
Proceeds from divestitures	0	2,759	10,177
Payments to acquire businesses, net of cash acquired	(197,489)	(79,983)	0
Net cash used in investing activities	(210,481)	(87,726)	(1,842)
FINANCING ACTIVITIES
Proceeds from long-term debt	323,200	261,394	150,062
Payments of long-term debt	(162,540)	(182,004)	(185,361)
Debt issuance costs	0	0	(920)
Dividends paid	(2,497)	(2,559)	(2,681)
Proceeds from the exercise of stock options	246	258	420
Tax effect of share-based compensation	(145)	134	756
Payments for Repurchase of Common Stock	500	(74,972)	0
Net cash (used in) provided by financing activities	158,764	2,251	(37,724)
Effect of exchange rate changes on cash and cash equivalents	(3,944)	(8,498)	(12,163)
INCREASE IN CASH AND CASH EQUIVALENTS	3,738	(66,831)	19,097
Cash and cash equivalents at beginning of period	54,541	121,372	102,275
CASH AND CASH EQUIVALENTS AT END OF YEAR	58,279	54,541	121,372
Supplemental Cash Flow Information:
Income taxes	10,650	15,049	16,672
Interest	$ 2,908	$ 1,992	$ 2,476