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Borrowing Arrangements
3 Months Ended
Dec. 30, 2011
Debt Disclosure [Abstract]  
Borrowing Arrangements
BORROWING ARRANGEMENTS

LONG-TERM DEBT        

On March 2, 2007, the Company issued $200.0 million aggregate principal amount of convertible subordinated notes ("2007 Convertible Notes"). The offering contained two tranches. The first tranche consisted of $100.0 million of 1.25% convertible subordinated notes due March 2010 (the "1.25% Notes") which have been retired. The second tranche consisted of $100.0 million aggregate principal amount of 1.50% convertible subordinated notes due March 2012 (the "1.50% Notes"). During the three months ended December 30, 2011, the Company redeemed and retired $9.4 million of aggregate principal amount of the 1.50% Notes, paying a cash premium of $5.6 million which was accounted for as a reacquisition of equity instruments in accordance with ASC 470-20 - Debt, Debt with Conversions and Other Options ("ASC 470-20"). As of December 30, 2011, the remaining aggregate principal amount of the 1.50% Notes was $17.3 million, which the Company redeemed and retired subsequent to the Balance Sheet date for total cash paid of $32.8 million (including premium).

On October 3, 2009, the Company adopted ASC 470-20 which requires the issuer of convertible debt instruments with cash settlement features to separately account for the liability and equity components of the convertible debt instrument and requires retrospective application to all periods presented in the financial statements to which it is applicable. ASC 470-20 applies to the Company's 2007 Convertible Notes. Using a non-convertible borrowing rate of 6.86%, the Company estimated the fair value of the liability component of the $100.0 million aggregate principal amount of the 1.50% Notes to be $77.3 million as of October 3, 2009. As of the issuance date, the difference between the fair value of the liability component of the 1.50% Notes and the corresponding aggregate principal amount of such notes, which is equal to the fair value of the equity component of the 1.50% Notes, $22.7 million, was retrospectively recorded as a debt discount and as an increase to additional paid-in capital, net of tax. The remaining unamortized discount of the liability component of the 1.50% Notes was written off in January 2012 to correspond with the retirement of the remaining outstanding aggregate principal amount of the 1.50% Notes.

The following tables provide additional information about the Company's 2007 Convertible Notes (in thousands):
 
As of
 
December 30,
2011
 
September 30,
2011
Equity component of the convertible notes outstanding
$
3,926

 
$
6,061

Principal amount of the convertible notes
17,277

 
26,677

Unamortized discount of the liability component
154

 
588

Net carrying amount of the liability component
17,123

 
26,089

 
 
 
 
 
Three-months Ended
 
December 30,
2011
 
December 31,
2010
Effective interest rate on the liability component
6.86
%
 
6.86
%
Cash interest expense recognized (contractual interest)
$
97

 
$
100

Effective interest expense recognized
$
351

 
$
328



The number of shares underlying the remaining 1.50% Notes was approximately 1.8 million at December 30, 2011.