Earnings Per Share Level 3 (Tables)

3 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

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

	Three Months Ended March 31,
	2013		2012
	(Dollars in thousands, except per share data)
Numerator:
Net income - numerator for earnings per common share	$	26,031	$	10,471
Interest on convertible subordinated debentures (net of income tax benefit)	—		258
Numerator for earnings per common share - assuming dilution	$	26,031	$	10,729
Denominator:
Weighted average common shares outstanding (1)	63,313,568		59,700,537
Effect of dilutive securities:
Convertible subordinated debentures	—		2,883,310
Convertible senior notes	4,483,492		2,719,840
Stock options and deferred compensation agreements	908,853		626,622
Denominator for earnings per common share - assuming dilution	68,705,913		65,930,309
Earnings per common share	$	0.41	$	0.18
Earnings per common share - assuming dilution	$	0.38	$	0.16

_____________________________

(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 Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block]

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 March 31, 2013	3,200	$14.34	$14.62
Three months ended March 31, 2012	1,499,900	$11.88	$14.34