Income per Common Share (Tables)

6 Months Ended

Mar. 31, 2013

Earnings Per Share [Abstract]

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share

Presented below is a reconciliation of net income available to common shareholders and the differences between weighted average common shares outstanding, which are used in computing basic income per share, and weighted average common and potential shares outstanding, which are used in computing diluted income per share.

	Three month period ended March 31,				Six month period ended March 31,
	2013		2012		2013		2012
Net income available to common shareholders (in thousands)	$	9,343	$	6,818	$	16,456	$	12,600
Weighted average common shares outstanding	28,666,249		27,250,810		28,567,974		27,453,705
Effect of dilutive securities:
Stock options and restricted shares	1,681,902		1,404,417		1,684,415		1,123,574
Weighted average common and potential shares outstanding	30,348,151		28,655,227		30,252,389		28,577,279
Basic income per share	$	0.33	$	0.25	$	0.58	$	0.46
Diluted income per share	$	0.31	$	0.24	$	0.54	$	0.44