Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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-Topic 718
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No definition available.

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Stock-Based Compensation - Narrative (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2019	Jun. 10, 2019	Jun. 09, 2019
Stock-based compensation expenses (restricted share units (“RSUs”) and performance-based RSUs (“PRSUs”)), before income taxes
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Compensation not yet recognized, share-based awards other than options	$ 34.8
Compensation cost not yet recognized, period for recognition	2 years 2 months 12 days
Omnibus Stock Incentive Plan
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock plan shares authorized		13,100,000	5,100,000