Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Reconciliation of information used in computing basic and diluted earnings per share

The following table sets forth a reconciliation of the information used in computing basic and diluted earnings per share:

	Three Months Ended March 31,
	2020		2019
Net earnings	$	176,279	$	105,705
Basic earnings per common share:
Net earnings	$	1.22	$	0.73
Weighted average shares outstanding	144,259,000		145,087,000
Diluted earnings per common share:
Net earnings	$	1.21	$	0.72
Weighted average shares outstanding	145,782,000		146,911,000

Reconciliation of share amounts used in computing earnings per share

The following table is a reconciliation of the share amounts used in computing earnings per share:

	Three Months Ended March 31,
	2020	2019
Weighted average shares outstanding - Basic	144,259,000	145,087,000
Dilutive effect of assumed exercise of SARs and vesting of performance shares and RSUs	1,523,000	1,824,000
Weighted average shares outstanding - Diluted	145,782,000	146,911,000