XML 97 R68.htm IDEA: XBRL DOCUMENT v3.3.1.900
Related Party Transactions - Summary of Reimbursements (Detail) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Dec. 31, 2013
Related Party Transactions [Abstract]      
Operating and maintenance expenses—affiliates, net $ 16,031 $ 10,770 $ 8,821
General and administrative—affiliates $ 5,312 $ 3,258 $ 3,286