Quarterly report pursuant to Section 13 or 15(d)

Supplemental Cash Flow Information - Cash and Restricted Cash Reconciliation (Details)

v3.19.1
Supplemental Cash Flow Information - Cash and Restricted Cash Reconciliation (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Dec. 31, 2017
Supplemental Cash Flow Elements [Abstract]        
Cash and cash equivalents $ 52,341 $ 57,854 $ 58,834  
Restricted cash included in prepaid and other current assets 1,744   1,182  
Total cash, cash equivalents and restricted cash shown in the condensed consolidated statements of cash flows $ 54,085 $ 59,726 $ 60,016 $ 67,243