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Goodwill and Intangible Assets, Net - Narrative (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Business Acquisition [Line Items]        
Goodwill impairment $ 0 $ 0 $ 0 $ 0
Amortization 3,400,000 3,800,000 6,886,000 7,600,000
Impairment of long-lived assets $ 0 $ 0 $ 0 $ 0