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Income Taxes	6 Months Ended
	Jun. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	12. Income Taxes The effective income tax rates for the six and three months ended June 30 were 20.8% and 21.0% for 2021 and 22.9% and 24.2% for 2020, respectively. The effective income tax rates for the six and three month periods ended June 30, 2021 were favorably impacted by a benefit related to decreases in uncertain tax positions and a benefit related to share-based compensation.

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The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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