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Concentration of Business, Significant Customers and Credit Risk (Details)
$ in Thousands
3 Months Ended 12 Months Ended
Mar. 31, 2014
customer
Mar. 31, 2016
USD ($)
customer
tannery
Mar. 31, 2015
USD ($)
customer
Dec. 31, 2013
customer
Concentration Risk [Line Items]        
Property and equipment   $ 237,246 $ 232,317  
Number of Customers Considered Concentration Risk | customer   5    
Number of Tanneries | tannery   2    
Number of Suppliers   1    
Long-lived Assets        
Concentration Risk [Line Items]        
Concentration risk (as a percent)   10.00%    
International Net Sales        
Concentration Risk [Line Items]        
Concentration risk (as a percent) 32.70% 40.00% 35.90% 33.00%
Concentration Risk Percentage Benchmark   10.00%    
Sales Revenue, Net | Customer Concentration Risk        
Concentration Risk [Line Items]        
Concentration risk (as a percent)   21.90% 22.20%  
Accounts Receivable | Unidentified Major Customer One        
Concentration Risk [Line Items]        
Concentration risk (as a percent)   10.00% 11.00%  
Number of Customers Considered Concentration Risk | customer 1 1 1 1
Accounts Receivable | Unidentified Major Customer Two        
Concentration Risk [Line Items]        
Concentration risk (as a percent)   10.00%    
UNITED STATES        
Concentration Risk [Line Items]        
Property and equipment   $ 211,111 $ 196,513  
Other Countries        
Concentration Risk [Line Items]        
Revenue, Net   526,000 519,000  
Property and equipment   $ 26,135 $ 35,804  
Concentration risk (as a percent)   28.10% 28.60%