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Commitments and Contingencies - Royalty Obligations (Details) - Royalty obligations
$ in Thousands
Dec. 31, 2019
USD ($)
Summary of Company’s enforceable and legally binding royalty obligations  
Less than 1 year $ 1,188
1 to 3 years 3,000
3 to 5 years 2,000
More than 5 years 1,083
Royalty obligations $ 7,271