XML 79 R20.htm IDEA: XBRL DOCUMENT  v2.3.0.11
Convertible Notes Payable
9 Months Ended
Jul. 31, 2011
Convertible Notes Payable [Abstract]  
CONVERTIBLE NOTES PAYABLE
(14) CONVERTIBLE NOTES PAYABLE
     The following table sets forth, in thousands, the carrying value and the estimated fair value of Ciena’s outstanding convertible notes:
                 
    July 31, 2011  
Description   Carrying Value     Fair Value  
0.25% Convertible Senior Notes due May 1, 2013
  $ 216,210     $ 209,048  
4.0% Convertible Senior Notes due March 15, 2015 (1)
    376,239       410,156  
0.875% Convertible Senior Notes due June 15, 2017
    500,000       406,875  
3.75% Convertible Senior Notes due October 15, 2018
    350,000       370,125  
 
           
 
  $ 1,442,449     $ 1,396,204  
 
           
 
(1)     Includes unamortized bond premium related to embedded redemption feature
     The fair value reported above is based on the quoted market price for the notes on the date above.