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Commitments and Contingencies - Estimated Annual Lease, Royalty, and Employment Agreement Expenses (Details)
$ in Thousands
Dec. 31, 2016
USD ($)
Commitments and Contingencies Disclosure [Abstract]  
2017 $ 2,827
2018 3,079
2019 2,023
2020 490
2021 141
Thereafter 374
Total Contractual commitments $ 8,934