Other Balance Sheet Information - Other Current Assets (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Other Current Assets:
Non-trade receivables	$ 17.2	$ 22.1
Prepaid expenses and other current assets	15.7	13.4
Income taxes receivable	8.0	8.2
Total other current assets	$ 40.9	$ 43.7

Carrying amount due within one year of the balance sheet date (or one operating cycle, if longer) from tax authorities as of the balance sheet date representing refunds of overpayments or recoveries based on agreed-upon resolutions of disputes.

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Amount of current assets classified as other.

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