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PRESENTATION OF FINANCIAL INFORMATION (Tables)
 6 Months Ended
Mar. 31, 2013
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Earnings Per Share
Basic earnings per share have been computed based upon the weighted-average number of common shares outstanding during the respective periods. Diluted earnings per share have been computed, when the result is dilutive, using the treasury stock method for stock awards outstanding during the respective periods. Earnings per share were calculated as follows (amounts in thousands, except per share data): 
 
 
Quarter Ended
 
Six Months Ended
 
 
March 31,
2013
 
April 1,
2012
 
March 31,
2013
 
April 1,
2012
Basic
 
 
 
 
 
 
 
 
Net income (loss)
 
$
(2,905
)
 
$
(4,792
)
 
$
11,309

 
$
(49,394
)
Weighted-average common shares outstanding
 
89,405

 
85,645

 
88,970

 
85,435

Basic earnings (loss) per share
 
$
(0.03
)
 
$
(0.06
)
 
$
0.13

 
$
(0.58
)
 
 
 
 
 
 
 
 
 
Diluted
 
 
 
 
 
 
 
 
Net income (loss)
 
$
(2,905
)
 
$
(4,792
)
 
$
11,309

 
$
(49,394
)
Weighted-average common shares outstanding for basic
 
89,405

 
85,645

 
88,970

 
85,435

Dilutive effect of stock awards
 
—

 
—

 
1,568

 
—

Weighted-average common shares outstanding on a diluted basis
 
89,405

 
85,645

 
90,538

 
85,435

Diluted earnings (loss) per share
 
$
(0.03
)
 
$
(0.06
)
 
$
0.12

 
$
(0.58
)