CONSOLIDATED STATEMENTS OF CASH FLOWS (Parenthetical) - USD ($) $ in Millions	Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Cash balance	$ 53.3	$ 80.2	$ 62.1	$ 72.0
Restricted cash balances	0.0	0.0	0.0	5.8
Discontinued Operations
Cash balance	$ 71.3	$ 70.5	$ 74.2	$ 245.4