Quarterly report pursuant to Section 13 or 15(d)

Segment Information (1) (Details)

v3.8.0.1
Segment Information (1) (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2017
USD ($)
segment
Aug. 21, 2017
USD ($)
Dec. 31, 2016
USD ($)
Number of segments | segment 2    
Preliminary assets $ 215,793   $ 210,457
Sierra [Member]      
Preliminary assets   $ 80,566