Significant Accounting Policies and Practices - Schedule of Contract with Customer, Asset and Liability (Details) - USD ($) $ in Millions	Mar. 31, 2018	Dec. 31, 2017
Assets
Notes and accounts receivable, net	$ 136.5	$ 122.3
Leasehold improvements, equipment and construction in progress, net	27.1	27.4
Other assets, net	18.3	18.3
Total assets	765.4	762.9
Liabilities
Accrued expenses	30.3	25.5
Contract with customer, liability	16.3	$ 20.5
Leasehold improvement on service concession contracts	0.6
Accounting Standards Update 2017-10
Liabilities
Contract with customer, asset	11.1
Contract with customer, liability	11.1
As Reported | Accounting Standards Update 2017-10
Assets
Notes and accounts receivable, net	136.5
Leasehold improvements, equipment and construction in progress, net	27.1
Other assets, net	18.3
Liabilities
Accrued expenses	30.3
Balances without Adoption of Topics 606 and 853 | Accounting Standards Update 2017-10
Assets
Notes and accounts receivable, net	125.4
Leasehold improvements, equipment and construction in progress, net	27.7
Other assets, net	17.7
Liabilities
Accrued expenses	19.2
Impact of Adoption Increase/(Decrease) | Accounting Standards Update 2017-10
Assets
Notes and accounts receivable, net	11.1
Leasehold improvements, equipment and construction in progress, net	(0.6)
Other assets, net	0.6
Liabilities
Accrued expenses	$ 11.1