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Income Taxes - Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred tax assets:
Deferred revenue and cancellation reserves	$ 95.3	$ 64.2
Allowances and accruals, including state tax carryforward amounts	72.8	55.6
Lease liability	107.6	73.4
Credits and other	0.6	3.4
Valuation allowance	(26.4)	(1.1)
Total deferred tax assets	249.9	195.5
Deferred tax liabilities:
Inventories	(20.1)	(44.9)
Goodwill	(112.3)	(76.5)
Property and equipment, principally due to differences in depreciation	(185.9)	(139.0)
Right of use asset	(103.7)	(69.8)
Prepaid expenses and other	(18.9)	(11.6)
Total deferred tax liabilities	(440.9)	(341.8)
Total	$ (191.0)	$ (146.3)

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