Annual report pursuant to Section 13 and 15(d)

Fair Value Measurements - Changes in Level 3 Fair Values (Details)

v3.10.0.1
Fair Value Measurements - Changes in Level 3 Fair Values (Details) - Level 3 - Contingent Consideration - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]    
Beginning balance $ 414 $ 541
Initial contingent consideration 7,000 812
Settlements through cash payments (247)  
Net gain on change in fair value (1,167) (939)
Ending balance $ 6,000 $ 414