Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurement Fair Value Measurement - Changes in Contingent Liabilities (Details)

v3.19.1
Fair Value Measurement Fair Value Measurement - Changes in Contingent Liabilities (Details)
$ in Thousands
3 Months Ended
Mar. 31, 2019
USD ($)
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]  
Contingent consideration liabilities balance at December 31, 2018 $ 962
Changes in the fair value of contingent consideration obligation 42
Contingent consideration liabilities balance at March 31, 2019 $ 1,004