Quarterly report pursuant to Section 13 or 15(d)

Leases - Summary of Activity for ARO Liabilities (Detail)

v3.19.1
Leases - Summary of Activity for ARO Liabilities (Detail)
$ in Thousands
3 Months Ended
Mar. 31, 2019
USD ($)
Leases [Abstract]  
Balance as of December 31, 2018 $ 717
Accretion expense 17
Balance as of March 31, 2019 $ 734