Stock Repurchase Program (Details) - USD ($) shares in Millions, $ in Millions	14 Months Ended
Sep. 30, 2020	Feb. 03, 2020	Aug. 05, 2019
Stock repurchases
Common stock repurchase authorized amount		$ 50.0	$ 50.0
Treasury stock shares acquired (in shares)	4.5
Treasury stock value acquired to date	$ 50.5
Remaining available authorization	$ 49.5

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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration