Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2015

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted

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

	Three Months Ended June 30,				Six Months Ended June 30,
	2015		2014		2015		2014
	(Dollars in thousands, except per share data)
Numerator:
Net income - numerator for earnings per common share	$	82,845	$	36,744	$	88,748	$	26,991
Denominator:
Weighted average common shares outstanding (1)	77,237,200		74,461,264		77,139,992		73,495,286
Effect of dilutive securities:
Convertible senior notes	—		2,259,425		—		2,843,987
2015 warrants	779,926		1,595,519		793,132		1,981,815
Stock options and deferred compensation agreements	1,087,893		1,154,726		1,123,614		1,220,996
Restricted stock and restricted stock units	122,298		46,870		116,405		40,679
Denominator for earnings per common share - assuming dilution	79,227,317		79,517,804		79,173,143		79,582,763
Earnings per common share	$	1.07	$	0.49	$	1.15	$	0.37
Earnings per common share - assuming dilution	$	1.05	$	0.46	$	1.12	$	0.34

(1) Weighted average common shares outstanding include shares vested under the NMO Deferred Compensation Plan and exclude unallocated shares held by the ESOP.

Schedule of Antidilutive Securities Excluded from Computation of Earnings 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 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, 2015	—	$—	$—
Three months ended June 30, 2014	1,277,650	$24.79	$24.79
Six months ended June 30, 2015	—	$—	$—
Six months ended June 30, 2014	1,277,650	$24.79	$24.79