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Subsequent Events | 6 Months Ended
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Jun. 30, 2021
Subsequent Events [Abstract] |
Subsequent Events, Policy [Policy Text Block] | Subsequent EventsNo events occurred requiring disclosure other than the repurchase of 0.4 million shares of our common stock for $7.2 million subsequent to June 30, 2021.

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- References No definition available. + Details
Name: | us-gaap_SubsequentEventsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Disclosure of accounting policy for reporting subsequent events. + References No definition available. + Details
Name: | us-gaap_SubsequentEventsPolicyPolicyTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration