XML 44 R33.htm IDEA: XBRL DOCUMENT v3.19.1
Supplemental Disclosures to the Condensed Consolidated Balance Sheets and Condensed Consolidated Statements of Cash Flows - Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($)
$ in Thousands
Mar. 31, 2019
Dec. 31, 2018
Mar. 31, 2018
Dec. 31, 2017
Organization, Consolidation and Presentation of Financial Statements [Abstract]        
Cash and cash equivalents $ 1,662 $ 68,680 $ 67,090 $ 33,905
Restricted cash 0 0 21,549 34,833
Cash, cash equivalents and restricted cash $ 1,662 $ 68,680 $ 88,639 $ 68,738