Annual report pursuant to Section 13 and 15(d)

Segments - Summarizes the Company's Property, Plant and Equipment by Geographic Region (Detail)

v2.4.1.9
Segments - Summarizes the Company's Property, Plant and Equipment by Geographic Region (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property, Plant and Equipment, Net $ 116,316us-gaap_PropertyPlantAndEquipmentNet $ 70,900us-gaap_PropertyPlantAndEquipmentNet $ 53,537us-gaap_PropertyPlantAndEquipmentNet
United States [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property, Plant and Equipment, Net 105,698us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_US
59,803us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_US
53,235us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_US
France [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property, Plant and Equipment, Net 10,347us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_FR
10,771us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_FR
 
Canada [Member]      
Revenues from External Customers and Long-Lived Assets [Line Items]      
Property, Plant and Equipment, Net $ 271us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_CA
$ 326us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_CA
$ 302us-gaap_PropertyPlantAndEquipmentNet
/ us-gaap_StatementGeographicalAxis
= country_CA