XML 49 R38.htm IDEA: XBRL DOCUMENT v3.7.0.1
Property and Equipment - Additional Information (Detail)
$ in Thousands
1 Months Ended 3 Months Ended
Feb. 28, 2017
USD ($)
Aug. 31, 2016
USD ($)
Jun. 30, 2017
USD ($)
Jun. 30, 2016
USD ($)
Mar. 31, 2017
USD ($)
Dec. 31, 2016
ft²
Property Plant And Equipment [Line Items]            
Property and equipment     $ 115,844   $ 107,729  
Acquisition cost for property and equipment     $ 9,804 $ 5,099    
Europe            
Property Plant And Equipment [Line Items]            
Acquisition cost for property and equipment $ 12,600          
Lease Agreements | Europe            
Property Plant And Equipment [Line Items]            
Office space under lease | ft²           33,000
Capital lease assets            
Property Plant And Equipment [Line Items]            
Property and equipment   $ 16,800        
Capital lease asset, useful life   15 years        
Land | Europe            
Property Plant And Equipment [Line Items]            
Acquisition cost for property and equipment 4,000          
Building and Building Improvements | Europe            
Property Plant And Equipment [Line Items]            
Acquisition cost for property and equipment $ 8,600