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Earnings Per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

The following table illustrates the earnings allocation method utilized in the calculation of basic and diluted earnings per share.

						Years Ended December 31,
(in thousands, except per-share amounts)						2020						2019						2018
Earnings per share numerator:
Net income attributable to common shareholders before allocation of earnings to participating securities						$	270,568					$	254,286					$	234,734
Earnings allocated to participating securities						448						441						474
Net income attributable to common shareholders after allocation of earnings to participating securities						$	270,120					$	253,845					$	234,260
Earnings per share denominator:
Weighted-average number of shares of common stock outstanding - basic and diluted						10,961						11,166						11,515
Earnings per share - basic and diluted						$	24.64					$	22.73					$	20.34

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- References

No definition available.

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- Definition

Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

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