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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2019

Share-based Payment Arrangement [Abstract]

Schedule of Compensation Expense

Stock-based compensation cost by award type follows:

(in millions)						Three Months Ended June 30,																		Six Months Ended June 30,
									2019						2018						2019						2018
Stock option awards						$	2.5					$	2.3					$	5.6					$	4.3
Restricted stock awards						2.1						2.3						4.1						4.2
Performance share awards						1.5						2.5						3.1						4.2
Restricted stock units						—						0.1						1.3						1.5
Stock appreciation rights						2.1						—						2.9						—
Total stock-based compensation cost						$	8.2					$	7.2					$	17.0					$	14.2

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- References

No definition available.

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- Definition

Tabular disclosure of cost recognized for award under share-based payment arrangement by plan. Includes, but is not limited to, related tax benefit.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(1)
-URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901

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