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Quarterly Data (Tables)

12 Months Ended

Dec. 31, 2020

Quarterly Financial Information Disclosure [Abstract]

Quarterly Data [Table Text Block]

																					Net Earnings
Quarter			Revenue						Gross Profit																								Net Earnings						Per Share - Basic						Per Share - Diluted
2020
First			$	1,655,939					$	612,243																							$	176,279					$	1.22					$	1.21
Second			1,499,175						551,598																								124,766						0.87						0.86
Third			1,748,256						658,729																								200,300						1.39						1.38
Fourth			1,780,390						651,449																								182,106						1.27						1.25
			$	6,683,760					$	2,474,019																							$	683,451					$	4.74					$	4.70
2019
First			$	1,724,757					$	623,542																							$	105,705					$	0.73					$	0.72
Second			1,810,706						672,593																								198,085						1.36						1.35
Third			1,825,345						673,488																								206,006						1.42						1.40
Fourth			1,775,589						651,315																								168,122						1.16						1.15
			$	7,136,397					$	2,620,938																							$	677,918					$	4.67					$	4.61

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- References

No definition available.

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- Definition

Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121640914&loc=d3e1280-108306

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