Annual report pursuant to Section 13 and 15(d)

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

v3.10.0.1
Supplemental Cash Flow Information - Cash and Restricted Cash Reconciliation (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2016
Dec. 31, 2015
Cash and Restricted Cash Reconciliation [Abstract]        
Cash and cash equivalents $ 57,854 $ 66,195 $ 70,742  
Restricted cash included in prepaid and other current assets 1,872 1,048 14,335  
Total cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows $ 59,726 $ 67,243 $ 85,077 $ 25,573