Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Additional Information (Details)

v3.19.1
Property and Equipment - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2019
Mar. 31, 2018
Property, Plant and Equipment [Abstract]    
Capital expenditures $ 30,600 $ 65,700
Impairment charges $ 1,952 $ 3,643