Earnings Per Share Level 3 (Tables)

12 Months Ended

Dec. 31, 2019

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 EPS is presented below:

	Years Ended December 31,
	2019		2018		2017
	(In thousands, except per share amounts)
Amounts attributable to common stockholders:
Net income — basic	$	369,596	$	447,208	$	546,663
After tax interest on convertible debt	—		—		52
Net income — diluted	$	369,596	$	447,208	$	546,715
Weighted average shares:
Weighted average shares — basic	182,246		182,447		187,630
Stock options	3,223		4,339		4,396
Restricted share units	54		186		99
Convertible debt	—		—		121
Weighted average shares — diluted	185,523		186,972		192,246
Amounts attributable to common stockholders:
Net income per share:
Basic	$	2.03	$	2.45	$	2.91
Diluted	$	1.99	$	2.39	$	2.84

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

	Years Ended December 31,
	2019	2018	2017
	(In thousands)
Antidilutive options	678	1,035	911