Quarterly report pursuant to Section 13 or 15(d)

Property and Equipment - Additional Information (Details)

v3.19.2
Property and Equipment - Additional Information (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2019
Jun. 30, 2018
Jun. 30, 2019
Jun. 30, 2018
Property, Plant and Equipment [Abstract]        
Capital expenditures $ 20,600 $ 33,900 $ 51,200 $ 99,600
Impairment charges $ 0 $ 10,317 $ 1,952 $ 13,960