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Net Income Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Computation of Basic and Diluted Net Income Per Share

The following is a reconciliation of basic to diluted net income per share:

		Years Ended December 31,
Numerator:		2020				2019				2018
Net income		$	350.1			$	140.4			$	392.9
Denominator:
Shares used in net income per common share – basic			55,095,000				54,711,000				54,406,000
Effect of dilutive securities			255,000				400,000				586,000
Shares used in net income per common share – diluted			55,350,000				55,111,000				54,992,000
Net income per common share:
Basic		$	6.36			$	2.57			$	7.22
Diluted		$	6.33			$	2.55			$	7.14

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- References

No definition available.

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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