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Segment Information - Summary of Company's Reportable Segments (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Net sales
Net sales	$ 102,100	$ 100,828	$ 292,006	$ 311,233
Income taxes
Income taxes	2,739	2,440	6,664	8,686
Net income
Net income	2,555	6,104	10,373	17,455
ASSETS
Assets	362,114		362,114		332,406
Operating Segments [Member] | PLP-USA [Member]
Net sales
Net sales	38,636	33,763	104,658	112,297
Income taxes
Income taxes	627	1,628	3,551	4,981
Net income
Net income	2,992	3,220	7,117	9,418
ASSETS
Assets	97,138		97,138		90,414
Operating Segments [Member] | The Americas [Member]
Net sales
Net sales	22,979	23,507	71,569	65,672
Income taxes
Income taxes	324	695	993	1,696
Net income
Net income	(12)	1,457	2,496	4,476
ASSETS
Assets	92,309		92,309		73,200
Operating Segments [Member] | EMEA [Member]
Net sales
Net sales	17,327	14,802	47,050	47,609
Income taxes
Income taxes	600	545	1,417	1,663
Net income
Net income	1,708	1,618	3,676	4,907
ASSETS
Assets	55,296		55,296		51,345
Operating Segments [Member] | Asia-Pacific [Member]
Net sales
Net sales	23,158	28,756	68,729	85,655
Income taxes
Income taxes	1,188	(428)	703	346
Net income
Net income	(2,133)	(191)	(2,916)	(1,346)
ASSETS
Assets	117,055		117,055		117,129
Segment Reconciling Items [Member]
Net sales
Net sales	102,100	100,828	292,006	311,233
Income taxes
Income taxes	2,739	2,440	6,664	8,686
Net income
Net income	2,555	6,104	10,373	17,455
ASSETS
Assets	361,798		361,798		332,088
Corporate, Non-Segment [Member]
ASSETS
Assets	316		316		318
Intersegment Eliminations [Member]
Intersegment sales
Intersegment sales	9,949	9,024	24,009	24,004
Intersegment Eliminations [Member] | PLP-USA [Member]
Intersegment sales
Intersegment sales	3,551	4,141	9,486	9,859
Intersegment Eliminations [Member] | The Americas [Member]
Intersegment sales
Intersegment sales	1,735	1,576	4,371	4,851
Intersegment Eliminations [Member] | EMEA [Member]
Intersegment sales
Intersegment sales	490	541	1,220	1,649
Intersegment Eliminations [Member] | Asia-Pacific [Member]
Intersegment sales
Intersegment sales	$ 4,173	$ 2,766	$ 8,932	$ 7,645

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Sum of the carrying amounts as of the balance sheet date of all assets that are recognized. Assets are probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

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Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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