Quarterly report pursuant to Section 13 or 15(d)

Balance Sheet Detail - Accounts payable and accrued expenses (Details)

v3.19.1
Balance Sheet Detail - Accounts payable and accrued expenses (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Accounts payable and accrued expenses    
Trade accounts payable $ 62,816 $ 62,751
Accrued expenses 3,932 3,902
Accounts payable and accrued expenses $ 66,748 $ 66,653