Share-Based Payments (Tables)

6 Months Ended

Mar. 31, 2015

Share-Based Payments [Abstract]

Restricted stock activity

The transactions for restricted stock for the six months ended March 31, 2015 were as follows:

				Weighted-
				average
				grant-date
	Shares			fair value
Non-vested at September 30, 2014		575,150			$33.83
Granted		215,370			40.07
Vested		(158,992	)		34.42
Expired or forfeited		(34,244	)		24.92
Non-vested at March 31, 2015		597,284			36.44

Stock option activity

The transactions for shares under options for the six months ended March 31, 2015 were as follows:

						Weighted-
				Weighted-		average		Aggregate
				average		remaining		intrinsic
	Shares			exercise price		contractual term		value
Outstanding, September 30, 2014		512,322			$38.62
Exercised		(99,144	)		38.11
Expired or forfeited		(68,557	)		36.52
Outstanding, March 31, 2015		344,621			39.19		1.2		$4,246
Exercisable, March 31, 2015		100,633			38.76		1.1		$1,284

Non-vested options activity

The transactions for non-vested options for the six months ended March 31, 2015 were as follows:

				Weighted-average
				grant-date
Non-vested shares	Shares			fair value
Non-vested at September 30, 2014		312,442			$11.21
Expired or forfeited		(68,454	)		11.70
Non-vested at March 31, 2015		243,988			11.07

Assumptions used in estimating fair value

The following table indicates the assumptions used in estimating fair value of restricted stock for the periods ended March 31, 2015 and 2014.

	Six Months Ended March 31,
	2015			2014
Expected volatility		22.2	%		26.6	%
Dividend yield		1.0	%		1.1	%
Average risk-free interest rate		1.7	%		1.4	%
Average expected term (years)		1.8			2.0