Stockholders' Equity and Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2017

Stockholders' Equity and Earnings Per Share [Abstract]

Schedule of earnings per share calculations

The following table presents the EPS calculations for the three and six months ended June 30, 2017 and 2016:

	Three Months Ended June 30,				Six Months Ended June 30,
($ and shares in thousands, except per share data)	2017		2016		2017		2016
Basic
Net income	$	118,330	$	103,284	$	288,066	$	210,800
Basic weighted average number of shares outstanding	144,485		144,101		144,368		144,029
Basic EPS	$	0.82	$	0.72	$	2.00	$	1.46
Diluted
Net income	$	118,330	$	103,284	$	288,066	$	210,800
Basic weighted average number of shares outstanding	144,485		144,101		144,368		144,029
Diluted potential common shares (1)	1,255		977		1,406		944
Diluted weighted average number of shares outstanding	145,740		145,078		145,774		144,973
Diluted EPS	$	0.81	$	0.71	$	1.98	$	1.45

(1) Includes dilutive shares from RSUs and warrants for the three and six months ended June 30,2017 and 2016.