Earnings Per Share Level 3 (Tables)

6 Months Ended

Jun. 30, 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 June 30,				Six Months Ended June 30,
	2020		2019		2020		2019
	(In thousands, except per share amounts)
Amounts attributable to common stockholders:
Net income — basic and diluted	$	105,508	$	72,329	$	187,449	$	151,652
Weighted average shares:
Weighted average shares — basic	177,902		182,369		179,378		182,048
Stock options	1,740		3,278		2,221		3,418
Restricted share units	24		43		40		51
Weighted average shares — diluted	$	179,666	$	185,690	$	181,639	$	185,517
Amounts attributable to common stockholders:
Earnings per share:
Basic	$	0.59	$	0.40	$	1.04	$	0.83
Diluted	$	0.59	$	0.39	$	1.03	$	0.82

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

	Three Months Ended June 30,		Six Months Ended June 30,
	2020	2019	2020	2019
	(In thousands)
Antidilutive options	2,706	105	1,486	—
Antidilutive restricted share units	67	—	49	—