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Income Taxes - Deferred Tax Asset and Liabilities (Details) - USD ($)
$ in Millions
Dec. 31, 2019
Dec. 31, 2018
Deferred income tax assets:    
Net operating loss $ 61.8 $ 66.0
Property, net 33.9 30.8
Insurance reserve 17.0 16.8
Stock-based compensation 38.3 33.0
Revenue reserves 0.0 6.1
Operating lease liabilities 30.6  
Other accruals 23.4 22.5
Tax credits 6.8 4.7
Other 0.2 0.6
Total deferred income tax assets 212.0 180.5
Less: Valuation allowance (38.4) (33.7)
Net deferred income tax assets 173.6 146.8
Deferred income tax liabilities:    
Revenue reserves (11.6) 0.0
Intangibles (94.6) (88.5)
Operating lease right-of-use assets (30.3)  
Carrying value of partnerships (34.0) (15.2)
Other (0.2) (0.2)
Total deferred income tax liabilities (170.7) (103.9)
Net deferred income tax assets $ 2.9 $ 42.9