Stock-based compensation (Tables)

3 Months Ended

Dec. 31, 2017

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



	Three Months Ended December 31,
(In thousands)	2017			2016
Stock options expense	$	60		$	107
Restricted stock awards expense	2,550			2,069
Before tax stock-based compensation expense	2,610			2,176
Tax benefit	(662		)	(774		)
After tax stock-based compensation expense	$	1,948		$	1,402

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



	Three Months Ended
	December 31, 2017
Expected life of options	5.0 years
Expected volatility	44.71		%
Expected dividends	—
Weighted average risk-free interest rate	2.06		%
Weighted average fair value	$	8.49

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



	Three Months Ended
	December 31, 2017
	Shares		Weighted Average Exercise Price
Outstanding at beginning of period	593,753		$	14.76
Granted	23,680		20.46
Exercised	(1,666	)	7.56
Expired	(56,967	)	23.65
Forfeited	(2,641	)	13.87
Outstanding at end of period	556,159		$	14.11
Exercisable at end of period	435,432		$	14.81
Vested or expected to vest in the future	554,381		$	14.11

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



	Three Months Ended December 31, 2017
	Performance-Based Restricted Stock				Time-Based Restricted Stock				Total Restricted Stock
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Beginning of period	668,766		$	15.72	872,181		$	16.47	1,540,947		$	16.14
Granted	144,746		22.40		189,372		20.46		334,118		21.30
Vested	—		—		(225,332	)	14.01		(225,332	)	14.01
Forfeited	(185,601	)	19.03		(8,144	)	16.49		(193,745	)	18.92
End of period	627,911		$	16.28	828,077		$	18.06	1,455,988		$	17.29