Short-Term and Long-Term Debt (Tables)

12 Months Ended

Oct. 31, 2019

Debt Disclosure [Abstract]

Schedule of carrying values and estimated fair values of debt instruments

The net carrying values of Ciena’s term loan were comprised of the following for the fiscal periods indicated (in thousands):

	October 31, 2019										October 31, 2018
	Principal Balance		Unamortized Discount			Deferred Debt Issuance Costs			Net Carrying Value		Net Carrying Value
Term Loan Payable due September 28, 2025	$	693,000	$	(1,958	)	$	(3,636	)	$	687,406	$	693,450