Segment Reporting Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 28, 2015	Mar. 29, 2014	Dec. 31, 2014
Segment Reporting Information [Line Items]
Net sales to external customers	$ 69,939us-gaap_SalesRevenueNet	$ 73,374us-gaap_SalesRevenueNet
Depreciation and amortization	2,493us-gaap_DepreciationAndAmortization	1,847us-gaap_DepreciationAndAmortization
Operating income	1,856us-gaap_OperatingIncomeLoss	6,960us-gaap_OperatingIncomeLoss
Long-lived assets	72,795us-gaap_NoncurrentAssets	44,551us-gaap_NoncurrentAssets
Capital expenditures	2,436	1,898
Total assets	414,461us-gaap_Assets	392,263us-gaap_Assets	425,463us-gaap_Assets
Americas Region
Segment Reporting Information [Line Items]
Net sales to external customers	30,398	29,594
Depreciation and amortization	1,522	1,005
Operating income	(2,174)	(78)
Long-lived assets	48,095	24,384
Capital expenditures	1,635	1,129
Total assets	217,587	203,080
Europe/Africa Region
Segment Reporting Information [Line Items]
Net sales to external customers	22,209	23,836
Depreciation and amortization	611	511
Operating income	33	2,114
Long-lived assets	21,791	17,615
Capital expenditures	596	698
Total assets	118,559	118,230
Asia-Pacific Region
Segment Reporting Information [Line Items]
Net sales to external customers	17,332	19,944
Depreciation and amortization	360	331
Operating income	3,997	4,924
Long-lived assets	2,909	2,552
Capital expenditures	205	71
Total assets	$ 78,315	$ 70,953

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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