Stock-based compensation (Tables)

6 Months Ended

Mar. 31, 2016

A summary of the expense related to stock-based compensation by award type is as follows for the periods presented:



	Three Months Ended March 31,						Six Months Ended March 31,
(In thousands)	2016			2015			2016			2015
Stock options expense	$	102		$	145		$	250		$	357
Restricted stock awards expense	1,929			1,404			3,538			2,574
Before tax stock-based compensation expense	2,031			1,549			3,788			2,931
Tax benefit	(991		)	—		^(a)	(1,848		)	—		^(a)
After tax stock-based compensation expense	$	1,040		$	1,549		$	1,940		$	2,931

We used the following assumptions for stock options granted, which derived the fair value shown, for the period presented:



	Six Months Ended
	March 31, 2016
Expected life of options	4.3 years
Expected volatility	45.23		%
Expected dividends	—
Weighted average risk-free interest rate	1.70		%
Weighted average fair value	$	5.48

Activity related to stock options for the periods presented is as follows:



	Three Months Ended				Six Months Ended
	March 31, 2016				March 31, 2016
	Shares		Weighted Average Exercise Price		Shares		Weighted Average Exercise Price
Outstanding at beginning of period	684,507		$	17.19	643,907		$	18.13
Granted	—		—		40,600		14.24
Forfeited	(3,234	)	18.53		(3,234	)	18.53
Outstanding at end of period	681,273		$	17.89	681,273		$	17.89
Exercisable at end of period	589,582		$	18.04	589,582		$	18.04
Vested or expected to vest in the future	681,243		$	17.89	681,243		$	17.89

Activity relating to all restricted stock awards is as follows for the periods presented:



	Three Months Ended				Six Months Ended
	March 31, 2016				March 31, 2016
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Beginning of period	1,288,474		$	17.28	956,283		$	18.27
Granted	9,467		9.03		491,443		14.69
Vested	(6,736	)	15.80		(120,989	)	18.62
Forfeited	(9,543	)	16.42		(45,075	)	7.99
End of period	1,281,662		$	17.23	1,281,662		$	17.23