Share-Based Payments (Tables)

3 Months Ended

Dec. 31, 2015

Share-Based Payments [Abstract]

Restricted stock activity

The transactions for restricted stock for the three months ended December 31, 2015 were as follows:

				Weighted-
				average
				grant-date
	Shares			fair value
Non-vested at September 30, 2015		570,567			$33.66
Granted		213,370			52.08
Vested		(249,340	)		29.94
Expired or forfeited		(2,785	)		36.89
Non-vested at December 31, 2015		531,812			44.93

Stock option activity

The transactions for shares under options for the quarter ended December 31, 2015 were as follows:

						Weighted-
				Weighted-		average		Aggregate
				average		remaining		intrinsic
	Shares			exercise price		contractual term		value
Outstanding, September 30, 2015		337,938			$39.19
Exercised		(47,834	)		37.59
Expired or forfeited		(98,745	)		37.33
Outstanding, December 31, 2015		191,359			40.56		0.9		$2,468
Exercisable, December 31, 2015		114,193			40.56		0.9		$1,473

Non-vested options activity

The transactions for non-vested options for the quarter ended December 31, 2015 were as follows:

				Weighted-average
				grant-date
Non-vested shares	Shares			fair value
Non-vested at September 30, 2015		166,406			$12.43
Expired or forfeited		(89,240	)		12.56
Non-vested at December 31, 2015		77,166			12.29

Assumptions used in estimating fair value

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

	Three Months Ended December 31,
	2015			2014
Expected volatility		20.7	%		22.2	%
Dividend yield		1.0	%		1.0	%
Average risk-free interest rate		1.7	%		1.7	%
Average expected term (years)		2.1			1.8