Retirement Plan and Incentive Awards (Tables)

12 Months Ended

Sep. 30, 2014

Retirement Plan and Incentive Awards [Abstract]

Schedule of Assumptions for Stock Options Granted During Period

The fair value of each grant is estimated on the date of grant using the Black-Scholes option-pricing model. We used the following weighted-average assumptions for options granted::

	2014			2013			2012
Expected life of options	5.1 years			5.0 years			5.0 years
Expected volatility	45.99		%	46.15		%	44.77		%
Expected discrete dividends	—			—			—
Weighted average risk-free interest rate	1.42		%	0.63		%	0.90		%
Weighted average fair value	$	7.97		$	5.48		$	4.30

Schedule of Stock Options and SSARs Outstanding, and Related Activity

The following table summarizes stock options and SSARs outstanding as of September 30 and activity during the fiscal years ended September 30:

	2014				2013				2012
	Shares		Weighted- Average Exercise Price		Shares		Weighted- Average Exercise Price		Shares		Weighted- Average Exercise Price
Outstanding at beginning of period	560,784		$	33.01	429,973		$	48.80	375,248		$	48.85
Granted	161,010		19.11		160,651		13.56		109,507		10.80
Exercised	(2,788	)	14.29		(681	)	10.80		—		—
Expired	(55,811	)	170.32		(22,914	)	47.65		(10,948	)	82.51
Forfeited	(12,972	)	19.85		(6,245	)	17.93		(43,834	)	24.13
Outstanding at end of period	650,223		$	18.12	560,784		$	33.01	429,973		$	48.80
Exercisable at end of period	355,703		$	19.74	310,120		$	48.73	247,588		$	58.61
Vested or expected to vest in the future	649,773		$	18.12	558,519		$	33.09	428,597		$	40.88

Schedule of Stock Options and SSARS Outstanding and Exercisable

The following table summarizes information about stock options and SSARs outstanding and exercisable at September 30, 2014:

	Stock Options/SSARs Outstanding				Stock Options/SSARs Exercisable
Range of Exercise Price	Number Outstanding	Weighted Average Contractual Remaining Life (Years)	Weighted Average Exercise Price		Number Exercisable	Weighted Average Contractual Remaining Life (Years)	Weighted Average Exercise Price
$1 - $15	255,747	5.71	$	12.28	120,644	5.54	$	11.85
$16 - $20	250,826	5.23	19.30		92,224	1.99	19.61
$21-$75	143,660	2.85	26.48		142,835	2.83	26.44
$1-$75	650,233	2.88	$	18.12	355,703	3.02	$	19.74

Schedule of Nonvested Stock Awards and Performance Shares

Activity relating to nonvested stock awards, including the Performance Shares for the fiscal years ended September 30, 2014, 2013 and 2012 is as follows:

	Year Ended September 30, 2014				Year Ended September 30, 2013				Year Ended September 30, 2012
	Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value		Shares		Weighted Average Grant Date Fair Value
Beginning of period	280,416		$	12.32	323,335		$	19.61	288,079		$	33.85
Granted	595,567		18.68		99,413		10.95		179,913		7.19
Vested	(113,320	)	22.55		(126,124	)	27.59		(88,497	)	34.20
Forfeited	(16,096	)	15.93		(16,208	)	30.57		(56,160	)	29.97
End of period	746,567		$	15.76	280,416		$	12.32	323,335		$	19.61