Accounts Payable and Accrued Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014	Sep. 30, 2014
Trade payables	$ 5.4	$ 10.4
Compensation and benefits payable	19.2	22.4
Accrued severance payments	8.7	2.4
Other accrued liabilities	11.5	15.3
Accounts payable and accrued liabilities	$ 44.8	$ 50.5
Successor [Member]
Accounts payable and accrued liabilities			$ 79.5