Revenue Recognition Contracts with Customer (Details) - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | |
|---|---|---|---|
Jun. 30, 2018 |
Jun. 30, 2018 |
Jan. 01, 2018 |
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| Revenue from Contract with Customer [Abstract] | |||
| Contract with Customer, Liability | $ 182.4 | $ 182.4 | $ 170.8 |
| Contract with Customer, Liability, Revenue Recognized | 18.4 | $ 48.5 | |
| Contract with Customer, Liability, Cumulative Catch-up Adjustment to Revenue, Change in Estimate of Transaction Price | $ 12.5 |
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- Definition Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of increase (decrease) in revenue recognized for cumulative catch-up adjustment from change in estimate of transaction price which (increases) decreases obligation to transfer good or service to customer for which consideration from customer has been received or is due. Includes, but is not limited to, change in assessment of whether estimate of variable consideration is constrained. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- References No definition available.
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