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Short-Term and Long-Term Debt (Tables)

3 Months Ended

Jan. 31, 2020

Debt Disclosure [Abstract]

Schedule of Carrying Values and Estimated Fair Values of Convertible Notes

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

		January 31, 2020																October 31, 2019
		Principal Balance				Unamortized Discount				Deferred Debt Issuance Costs				Net Carrying Value				Net Carrying Value
Term Loan Payable due September 28, 2025 (New)		$	693,000			$	(1,824	)		$	(3,390	)		$	687,786			$	—
Term Loan Payable due September 28, 2025 (Old)		$	—			$	—			$	—			$	—			$	687,406

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- Definition

Tabular disclosure of information pertaining to carrying amount and estimated fair value of short-term and long-term debt instruments or arrangements, including but not limited to, identification of terms, features, and collateral requirements.

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