Amount of employee taxes paid related to share-based compensation, classified as operating activities.

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Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting.

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Amount of current assets classified as other.

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Amount of cash outflow to satisfy an employee's income tax withholding obligation as part of a net-share settlement of a share-based award.

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The cumulative amount of the reporting entity's undistributed earnings or deficit.

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Organization and Summary of Significant Accounting Policies - Recent Accounting Pronouncements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Jan. 01, 2018	Dec. 31, 2017
Recent Accounting Pronouncements
Cumulative effect adjustment to retained earnings	$ 1,504.5			$ 2,009.4
Decrease in other current assets due to reclassification related to ASU	(73.9)			$ (81.8)
Accounting Standards Update 2015-17 \| Scenario, Adjustment
Recent Accounting Pronouncements
Decrease in other current assets due to reclassification related to ASU	28.7
Decrease in deferred tax liabilities due to reclassification related to ASU	28.7
Accounting Standards Update 2014-09 \| Scenario Forecast Adjustment
Recent Accounting Pronouncements
Cumulative effect adjustment to retained earnings			$ 6.0
Accounting Standards Update 2016-09 \| Scenario, Adjustment
Recent Accounting Pronouncements
Employee taxes paid related to share-based compensation, ASU reclassification adjustment to operating activities	5.8	$ 6.3
Employee taxes paid related to share-based compensation, ASU reclassification adjustment to financing activities	$ 5.8	$ 6.3