v3.10.0.1
Other Assets - Other Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2018
Jan. 01, 2018
Dec. 31, 2017
Other Assets      
Deferred compensation plan $ 101.2   $ 99.9
Deferred contract costs and sales commissions 91.5   43.6
Reinsurance receivable 70.2   65.9
Investments 31.4   26.0
Amounts recoverable for capping, closure and post-closure obligations 30.0   29.9
Interest rate swaps 23.9   27.1
Deferred financing costs 4.8   3.0
Other 40.9   39.8
Total $ 393.9 $ 379.0 $ 335.2