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Fair Value Measurements - Schedule of Changes in Fair Value of Contingent Consideration Obligation (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2020
Mar. 31, 2019
Fair Value Disclosures [Abstract]    
Fair value, beginning of period $ 4,777 $ 4,477
Changes in fair value 75 75
Fair value, end of period $ 4,852 $ 4,552