XML 92 R78.htm IDEA: XBRL DOCUMENT v3.6.0.2
Related Party Transactions (Details) - Affiliates of Entity Chairman - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Related party transactions      
Rent expense $ 1.2 $ 1.2 $ 1.1
Future minimum lease commitments relating to leases $ 2.9