Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis (Details)

v3.19.2
Fair Value Measurements - Financial Assets and Liabilities Carried at Fair Value on Recurring Basis (Details) - Recurring [Member] - USD ($)
$ in Thousands
Jun. 30, 2019
Dec. 31, 2018
Assets:    
Long-term equity securities $ 1,138 $ 392
Liabilities:    
Contingent consideration 3,075  
Significant Unobservable Inputs (Level 3) [Member]    
Assets:    
Long-term equity securities 1,138 $ 392
Liabilities:    
Contingent consideration $ 3,075