Segments and Entity-Wide Disclosures (Tables)

9 Months Ended

Jul. 31, 2018

Segment Reporting [Abstract]

Schedule of Segment Revenue

The table below (in thousands) sets forth Ciena’s segment revenue for the respective periods:

	Quarter Ended July 31,				Nine Months Ended July 31,
	2018		2017		2018		2017
Revenue:
Networking Platforms
Converged Packet Optical	$	592,892	$	510,226	$	1,548,189	$	1,433,137
Packet Networking	84,559		82,121		216,977		220,641
Total Networking Platforms	677,451		592,347		1,765,166		1,653,778
Software and Software-Related Services
Software Platforms	14,307		18,395		56,427		48,587
Software-Related Services	26,876		23,856		76,988		70,760
Total Software and Software-Related Services	41,183		42,251		133,415		119,347
Global Services
Maintenance Support and Training	60,897		57,902		177,759		171,133
Installation and Deployment	31,262		27,397		89,487		84,011
Consulting and Network Design	8,024		8,822		29,103		28,969
Total Global Services	100,183		94,121		296,349		284,113
Consolidated revenue	$	818,817	$	728,719	$	2,194,930	$	2,057,238

Schedule of Segment Profit (Loss) and the Reconciliation to Consolidated Net Income (Loss)

The table below (in thousands) sets forth Ciena’s segment profit and the reconciliation to consolidated net income (loss) during the respective periods indicated:

	Quarter Ended July 31,						Nine Months Ended July 31,
	2018			2017			2018			2017
Segment profit:
Networking Platforms	$	181,603		$	159,649		$	396,995		$	423,859
Software and Software-Related Services	9,305			11,133			41,216			23,384
Global Services	39,502			39,565			121,823			116,637
Total segment profit	230,410			210,347			560,034			563,880
Less: Non-performance operating expenses
Selling and marketing	95,395			86,739			281,269			260,292
General and administrative	38,212			35,569			115,594			106,423
Significant asset impairments and restructuring costs	6,359			2,203			16,679			8,874
Amortization of intangible assets	3,837			3,837			11,083			29,368
Acquisition and integration costs	1,333			—			1,333			—
Add: Other non-performance financial items
Interest expense and other income (loss), net	(15,154		)	(14,263		)	(39,048		)	(45,322		)
Less: Provision for income taxes	19,280			7,726			503,695			11,704
Consolidated net income (loss)	$	50,840		$	60,010		$	(408,667	)	$	101,897

Schedule of Ciena's Geographic Distribution of Revenue and Long-Lived Assets

For the periods below, Ciena’s geographic distribution of equipment, building, furniture and fixtures was as follows (in thousands):

	July 31, 2018		October 31, 2017
Canada	$	197,057	$	203,491
United States	79,243		90,482
Other International	19,563		14,492
Total	$	295,863	$	308,465

Schedule of Revenue by Major Customers by Reporting Segments

For the periods below, Verizon, AT&T and a Web-scale provider were the only customers that accounted for at least 10% of Ciena’s revenue as follows (in thousands):

	Quarter Ended July 31,				Nine Months Ended July 31,
	2018		2017		2018		2017
Verizon	$	97,103	$	82,918	$	221,475	$	206,272
AT&T	87,389		120,931		263,453		324,900
Web-scale provider	86,364		n/a		n/a		n/a
Total	$	270,856	$	203,849	$	484,928	$	531,172