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Segment Information (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Dec. 31, 2011
Net sales
Net sales	$ 114,206	$ 108,690	$ 334,992	$ 318,308
Intersegment sales
Intersegment sales	8,578	7,423	27,610	23,152
Income Taxes
Income taxes	4,126	3,568	11,501	11,483
Net income
Net income	9,284	6,660	24,013	22,044
ASSETS
Total assets	344,068		344,068		327,348
Reportable Segment [Member]
ASSETS
Total assets	343,747		343,747		327,025
PLP-USA [Member]
Net sales
Net sales	41,291	38,896	125,650	109,308
Intersegment sales
Intersegment sales	1,655	2,160	6,901	7,085
Income Taxes
Income taxes	2,081	1,543	6,664	5,000
Net income
Net income	3,404	2,389	10,965	7,437
PLP-USA [Member] | Reportable Segment [Member]
ASSETS
Total assets	87,649		87,649		82,478
The Americas [Member]
Net sales
Net sales	23,791	26,601	69,844	76,448
Intersegment sales
Intersegment sales	1,684	1,339	5,921	5,134
Income Taxes
Income taxes	824	831	2,337	3,065
Net income
Net income	2,292	1,806	5,738	6,246
The Americas [Member] | Reportable Segment [Member]
ASSETS
Total assets	69,512		69,512		72,908
EMEA [Member]
Net sales
Net sales	18,357	15,274	50,014	45,593
Intersegment sales
Intersegment sales	1,034	627	2,896	1,473
Income Taxes
Income taxes	964	730	2,211	1,231
Net income
Net income	3,254	893	6,806	2,953
EMEA [Member] | Reportable Segment [Member]
ASSETS
Total assets	55,101		55,101		47,098
Asia-Pacific [Member]
Net sales
Net sales	30,767	27,919	89,484	86,959
Intersegment sales
Intersegment sales	4,205	3,297	11,892	9,460
Income Taxes
Income taxes	257	464	289	2,187
Net income
Net income	334	1,572	504	5,408
Asia-Pacific [Member] | Reportable Segment [Member]
ASSETS
Total assets	131,485		131,485		124,541
Corporate Assets [Member] | Reportable Segment [Member]
ASSETS
Total assets	$ 321		$ 321		$ 323

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