Quarterly report pursuant to Section 13 or 15(d)

Business and Credit Concentrations - Additional Information (Detail)

v3.2.0.727
Business and Credit Concentrations - Additional Information (Detail)
$ in Thousands
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2015
USD ($)
Customer
Jun. 30, 2014
Customer
Jun. 30, 2015
USD ($)
Customer
Jun. 30, 2014
USD ($)
Customer
Dec. 31, 2014
USD ($)
Customer
Concentration Risk [Line Items]          
Provision for bad debts, returns and allowances     $ 4,216 $ 6,597  
Credit losses attributable to write-offs     $ 700 $ 4,900  
Net Sales [Member] | Customer Concentration Risk [Member]          
Concentration Risk [Line Items]          
Number of largest customers | Customer 5 5 5 5  
Percentage of cash and cash equivalents 15.90% 16.20% 16.30% 16.60%  
Number of customers accounting for more than 10% | Customer 0 0 0 0  
Net Trade Receivable [Member] | Credit Concentration Risk [Member]          
Concentration Risk [Line Items]          
Number of customers accounting for more than 10% | Customer     0   0
Domestic [Member]          
Concentration Risk [Line Items]          
Accounts receivable $ 256,000   $ 256,000   $ 166,900
Outside U.S. [Member]          
Concentration Risk [Line Items]          
Accounts receivable 201,500   201,500   126,200
Net total assets held outside the United States $ 659,800   $ 659,800   $ 548,900