Earnings (Loss) Per Share and Stockholders' Equity (Tables)

6 Months Ended

Jun. 30, 2016

Earnings Per Share [Abstract]

Schedule of Earnings (Loss) Per Share, Basic and Diluted

The following table sets forth the computation of earnings (loss) per common share and earnings (loss) per common share - assuming dilution:

	Three Months Ended June 30,				Six Months Ended June 30,
	2016		2015		2016			2015
	(Dollars in thousands, except per share data)
Numerator:
Net income (loss) - numerator for earnings (loss) per common share	$	14,708	$	82,845	$	(30,133	)	$	88,748
Denominator:
Weighted average common shares outstanding (1)	82,516,927		77,237,200		82,322,919			77,139,992
Effect of dilutive securities:
2015 warrants	—		779,926		30,439			793,132
Stock options and deferred compensation agreements	353,052		1,087,893		422,809			1,123,614
Restricted stock and restricted stock units	314,158		122,298		296,649			116,405
Denominator for earnings (loss) per common share - assuming dilution	83,184,137		79,227,317		83,072,816			79,173,143
Earnings (loss) per common share	$	0.18	$	1.07	$	(0.37	)	$	1.15
Earnings (loss) per common share - assuming dilution	$	0.18	$	1.05	$	(0.37	)	$	1.12

(1) Weighted average common shares outstanding include shares vested under the NMO Deferred Compensation Plan.

Schedule of Antidilutive Securities Excluded from Computation of Earnings (Loss) Per Share

Options to purchase shares of our common stock that were outstanding during the respective periods indicated but were not included in the computation of diluted earnings (loss) per share because the options' exercise price was greater than the average market price of the common shares are as follows:

Period	Number of Shares	Range of Exercise Prices
		Minimum	Maximum
Three months ended June 30, 2016	1,061,541	$24.79	$24.79
Three months ended June 30, 2015	—	$—	$—
Six months ended June 30, 2016	1,061,541	$24.79	$24.79
Six months ended June 30, 2015	—	$—	$—