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Commitment and Contingencies Commitment and Contingencies - Commitment Narrative (Details)
$ in Thousands
Mar. 31, 2017
USD ($)
Loss Contingencies [Line Items]  
Purchase obligation $ 20,757
Accrued Liabilities [Member]  
Loss Contingencies [Line Items]  
Commitment to suppliers included in accrued liabilities 11,500
Contractual obligations under license agreements included in accrued current liabilities 200
Licensing Agreements [Member]  
Loss Contingencies [Line Items]  
Future payments due $ 1,600