Revenue Recognition - Accounts Receivable (Details) - USD ($) $ in Millions	Jun. 30, 2021	Dec. 31, 2020
Revenue Recognition [Abstract]
Trade receivables, net	$ 217.3	$ 180.9
Miscellaneous receivables, net	33.4	63.9
Accounts receivable, net	$ 250.7	$ 244.8

The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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