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Segment Information - Summary of Company's Reportable Segments (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016	Dec. 31, 2016
Net sales
Net sales	$ 97,512	$ 83,220	$ 182,081	$ 161,903
Income taxes
Income taxes	2,102	1,018	2,702	2,016
Net income (loss)
Net income (loss)	4,156	2,755	5,674	5,413
Assets
Total identifiable assets	351,571		351,571		$ 340,937
PLP-USA [Member]
Assets
Total identifiable assets	123,175		123,175		122,326
The Americas [Member]
Assets
Total identifiable assets	65,282		65,282		63,643
EMEA [Member]
Assets
Total identifiable assets	56,660		56,660		54,493
Asia-Pacific [Member]
Assets
Total identifiable assets	106,454		106,454		$ 100,475
Operating Segments [Member] | PLP-USA [Member]
Net sales
Net sales	38,087	34,183	72,949	68,830
Income taxes
Income taxes	463	126	41	106
Net income (loss)
Net income (loss)	949	(37)	317	(157)
Operating Segments [Member] | The Americas [Member]
Net sales
Net sales	16,827	14,515	33,396	26,969
Income taxes
Income taxes	804	694	1,515	1,240
Net income (loss)
Net income (loss)	1,789	1,107	3,574	2,188
Operating Segments [Member] | EMEA [Member]
Net sales
Net sales	17,578	14,660	31,430	28,578
Income taxes
Income taxes	375	674	578	1,180
Net income (loss)
Net income (loss)	669	1,933	1,288	3,632
Operating Segments [Member] | Asia-Pacific [Member]
Net sales
Net sales	25,020	19,862	44,306	37,526
Income taxes
Income taxes	460	(476)	568	(510)
Net income (loss)
Net income (loss)	749	(248)	495	(250)
Intersegment Eliminations [Member]
Intersegment sales
Intersegment sales	7,249	5,807	13,863	11,459
Intersegment Eliminations [Member] | PLP-USA [Member]
Intersegment sales
Intersegment sales	3,012	1,965	6,019	4,178
Intersegment Eliminations [Member] | The Americas [Member]
Intersegment sales
Intersegment sales	1,467	1,274	2,708	2,566
Intersegment Eliminations [Member] | EMEA [Member]
Intersegment sales
Intersegment sales	285	257	600	656
Intersegment Eliminations [Member] | Asia-Pacific [Member]
Intersegment sales
Intersegment sales	$ 2,485	$ 2,311	$ 4,536	$ 4,059

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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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