Basic and Diluted Earnings per Share (Tables)

12 Months Ended

Dec. 31, 2020

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

The following table reconciles the numerator and the denominator of the basic and diluted per share computations for earnings attributable to shareholders.

	Net earnings attributable to shareholders		Weighted average shares		Earnings per share
2020
Basic earnings attributable to shareholders	$	696,140		168,333	$	4.14
Effect of dilutive potential common shares		—		2,563		—
Diluted earnings attributable to shareholders	$	696,140		170,896	$	4.07
2019
Basic earnings attributable to shareholders	$	590,395		170,899	$	3.45
Effect of dilutive potential common shares		—		3,310		—
Diluted earnings attributable to shareholders	$	590,395		174,209	$	3.39
2018
Basic earnings attributable to shareholders	$	618,199		174,133	$	3.55
Effect of dilutive potential common shares		—		3,700		—
Diluted earnings attributable to shareholders	$	618,199		177,833	$	3.48