Annual report pursuant to Section 13 and 15(d)

Summary of Significant Accounting Policies - Allocation of Expenses (Details)

v3.6.0.2
Summary of Significant Accounting Policies - Allocation of Expenses (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2015
Dec. 31, 2014
Accounting Policies    
Allocated general corporate costs $ 13.6 $ 21.9
Allocated operating expenses 5.6 $ 17.8
Understatement of Allocation of Corporate Expense    
Accounting Policies    
Correction or error, amount $ 1.9