Increase (Decrease) in Treasury Stock [Roll Forward]

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- Definition

Stock Repurchase Program Additional Authorized Amount

+ References

No definition available.

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- Definition

Treasury Stock Held, Average Cost Per Share

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No definition available.

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- Definition

[Line Items] for Treasury Stock Roll Forward [Table]

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No definition available.

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- Definition

Number of treasury shares or units reissued. Excludes reissuance of shares or units in treasury for award under share-based payment arrangement.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
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-Name Accounting Standards Codification
-Topic 505
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-Section 50
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-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
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-URI http://asc.fasb.org/extlink&oid=27012166&loc=d3e187085-122770

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- Definition

Total cost of shares repurchased divided by the total number of shares repurchased.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-Section 45
-Paragraph 1
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- Definition

Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.

+ References

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- Definition

Number of shares that have been repurchased during the period and are being held in treasury.

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-Name Accounting Standards Codification
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Shareholders' Equity \| Company's Common Share Repurchase and Issuance Activity (Details) - USD ($) $ / shares in Units, $ in Millions	6 Months Ended
	Jul. 31, 2019	Feb. 26, 2019	Jan. 31, 2019
Treasury Stock Roll Forward
Stock Repurchase Program Additional Authorized Amount		$ 100.0
Change in Treasury Stock
Treasury stock balance at January 31, 2019	22,305,464
Shares of treasury stock repurchased	1,179,176
Treasury Stock Acquired, Average Cost Per Share	$ 99.81
Treasury stock balance at July 31, 2019	23,288,420
Treasury Stock Held, Average Cost Per Share	$ 49.22		$ 46.53
Equity Incentive Plans
Change in Treasury Stock
Shares of Treasury Stock Reissued for Equity Incentive Plans	196,220