XML 86 R72.htm IDEA: XBRL DOCUMENT v3.20.2
Income taxes (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Income taxes        
Income tax (benefit) expense $ 11,695 $ 19,748 $ 45,227 $ 24,886
Increase in unrecognized tax benefits     1,500  
Increase (decrease) noncurrent other liabilities     $ (100)