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LEASES (Tables)

12 Months Ended

Nov. 01, 2025

Leases [Abstract]

Schedule of Leases Included in Balance Sheet

Leases included on the Consolidated Balance Sheets for the fiscal periods indicated were as follows (in thousands):

			Classification						Balance at November 1, 2025						Balance at November 2, 2024
Operating leases (1)
Operating ROU Assets			Operating right-of-use assets						$	38,613					$	27,417
Operating lease liabilities			Operating lease liabilities and Long-term operating lease liabilities						$	46,472					$	39,562
Finance leases:
Buildings, gross			Equipment, building, furniture and fixtures, net						$	67,242					$	67,517
Less: accumulated depreciation			Equipment, building, furniture and fixtures, net						(38,348)						(34,206)
Buildings, net									$	28,894					$	33,311
Finance lease liabilities			Accrued liabilities and other short-term obligations and other long-term obligations						$	43,344					$	47,917

(1) Ciena added two new ten-year operating leases to its portfolio in the second quarter of fiscal 2025. The addition of these operating leases increased both operating right-of-use (“ROU”) assets and lease liabilities for fiscal 2025.

Schedule of Components of Lease Expense

For the periods indicated, the components of lease expense included in the Consolidated Statements of Operations were as follows (in thousands):

									Year Ended						Year Ended						Year Ended
			Classification						November 1, 2025						November 2, 2024						October 28, 2023
Operating lease costs			Operating expense						$	13,607					$	13,595					$	16,080
Finance lease cost:
Amortization of finance ROU asset			Operating expense						4,283						4,406						4,448
Interest on finance lease liabilities			Interest expense						3,356						3,769						4,069
Total finance lease cost									7,639						8,175						8,517
Non-capitalized lease cost			Operating expense						736						954						910
Variable lease cost(1)			Operating expense						2,688						2,562						3,421
Net lease cost(2)									$	24,670					$	25,286					$	28,928

(1) Variable lease costs include expenses relating to insurance, taxes, maintenance and other costs required by the applicable operating lease. Variable lease costs are determined by whether they are to be included in base rent and if amounts are based on a consumer price index.

(2) Excludes other operating expense of $5.3 million, $5.3 million, and $6.5 million for the fiscal years ended November 1, 2025, November 2, 2024, and October 28, 2023, respectively, related to amortization of leasehold improvements.

The weighted average remaining lease terms and weighted average discount rates for operating and finance leases were as follows (in thousands):

			As of November 1, 2025						As of November 2, 2024
Weighted-average remaining lease term in years:
Operating leases			5.51						4.00
Finance leases			6.71						7.71
Weighted-average discount rates:
Operating leases			4.99		%				4.29		%
Finance leases			7.56		%				7.56		%

Schedule of Future Minimum Lease Payments, Operating Lease

Future minimum lease payments and the present value of minimum lease payments related to operating and finance leases as of November 1, 2025 were as follows (in thousands):

Fiscal Year			Operating Leases						Finance Leases						Total
2026			$	15,639					$	7,748					$	23,387
2027			9,965						8,016						17,981
2028			5,078						8,285						13,363
2029			5,653						8,285						13,938
2030			4,631						8,437						13,068
Thereafter			13,142						14,406						27,548
Total lease payments			54,108						55,177						109,285
Less: Imputed interest			(7,636)						(11,833)						(19,469)
Present value of lease liabilities			46,472						43,344						89,816
Less: Current portion of present value of minimum lease payments			13,956						4,741						18,697
Long-term portion of present value of minimum lease payments			$	32,516					$	38,603					$	71,119

Schedule of Future Minimum Lease Payments, Finance Lease

Future minimum lease payments and the present value of minimum lease payments related to operating and finance leases as of November 1, 2025 were as follows (in thousands):

Fiscal Year			Operating Leases						Finance Leases						Total
2026			$	15,639					$	7,748					$	23,387
2027			9,965						8,016						17,981
2028			5,078						8,285						13,363
2029			5,653						8,285						13,938
2030			4,631						8,437						13,068
Thereafter			13,142						14,406						27,548
Total lease payments			54,108						55,177						109,285
Less: Imputed interest			(7,636)						(11,833)						(19,469)
Present value of lease liabilities			46,472						43,344						89,816
Less: Current portion of present value of minimum lease payments			13,956						4,741						18,697
Long-term portion of present value of minimum lease payments			$	32,516					$	38,603					$	71,119

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Assets And Liabilities, Lessee [Table Text Block]

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- Definition

Tabular disclosure of undiscounted cash flows of finance lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to finance lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

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- Definition

Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-4

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- Definition

Tabular disclosure of undiscounted cash flows of lessee's operating lease liability. Includes, but is not limited to, reconciliation of undiscounted cash flows to operating lease liability recognized in statement of financial position.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 842
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478964/842-20-50-6

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