XML 78 R67.htm IDEA: XBRL DOCUMENT v3.20.2
Property and Equipment - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Property Plant And Equipment [Abstract]        
Depreciation expense $ 11,500 $ 11,200 $ 23,700 $ 21,300
Amortization expense on finance lease assets $ 923 $ 609 1,841 1,198
Property and equipment purchased through accounts payable and accrued liabilities, decreased amount     $ 7,100 $ 3,200