Earnings Per Share Level 3 (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share, Diluted, by Common Class, Including Two Class Method [Line Items]

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

A reconciliation of the numerators and denominators of basic and diluted earnings per share is presented below:

	Three Months Ended March 31,
	2020		2019
	(In thousands, except per share amounts)
Amounts attributable to common stockholders:
Net income — basic and diluted	$	81,941	$	79,323
Weighted average shares:
Weighted average shares — basic	180,854		181,696
Stock options	2,675		3,562
Restricted share units	56		59
Weighted average shares — diluted	183,585		185,317
Amounts attributable to common stockholders:
Earnings per share:
Basic	$	0.45	$	0.44
Diluted	$	0.45	$	0.43

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

	Three Months Ended March 31,
	2020	2019
	(In thousands)
Antidilutive options	1,228	—
Antidilutive restricted stock units	31	37