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Convertible Notes Payable (Tables)
 6 Months Ended
Apr. 30, 2014
Debt Disclosure [Abstract]  
Schedule of details of convertible notes
The principal balance, unamortized discount and net carrying amount of the liability and equity components of our 4.0% convertible senior notes due December 15, 2020 Notes ("2020 Notes") were as follows as of April 30, 2014:
 
Liability Component
 
Equity Component
 
Principal Balance
 
Unamortized Discount
 
Net Carrying Amount
 
Net Carrying Amount
4.0% Convertible Senior Notes due December 15, 2020
$
192,216

 
$
15,575

 
$
176,641

 
$
43,131
Schedule of carrying values and estimated fair values of convertible notes
The following table sets forth, in thousands, the carrying value and the estimated fair value of Ciena’s outstanding convertible notes:
 
 
April 30, 2014
 
 
Carrying Value
 
Fair Value(2)
4.0% Convertible Senior Notes, due March 15, 2015 (1)
 
187,647

 
214,805

0.875% Convertible Senior Notes due June 15, 2017
 
500,000

 
494,375

3.75% Convertible Senior Notes due October 15, 2018
 
350,000

 
448,875

4.0% Convertible Senior Notes due December 15, 2020 (3)
 
176,641

 
246,797

 
 
$
1,214,288

 
$
1,404,852


(1)
Includes unamortized bond premium related to embedded redemption feature.
(2)
The convertible notes were categorized as Level 2 in the fair value hierarchy. Ciena estimated the fair value of its outstanding convertible notes using a market approach based upon observable inputs, such as current market transactions involving comparable securities.
(3)
Includes unamortized discount and accretion of principal.