SEGMENTS AND ENTITY WIDE DISCLOSURES (Details) - USD ($)
$ in Thousands |
3 Months Ended |
6 Months Ended |
Apr. 30, 2017 |
Apr. 30, 2016 |
Apr. 30, 2017 |
Apr. 30, 2016 |
| Revenue: |
|
|
|
|
| Revenue |
$ 707,022
|
$ 640,717
|
$ 1,328,519
|
$ 1,213,832
|
| Segment profit (loss) and the reconciliation to consolidated net income (loss) |
|
|
|
|
| Operating income (loss) |
57,820
|
28,233
|
76,924
|
39,472
|
| Less: Non-performance operating expenses |
|
|
|
|
| Selling and marketing |
88,551
|
86,668
|
173,553
|
169,146
|
| General and administrative |
34,990
|
35,203
|
70,854
|
66,345
|
| Amortization of intangible assets |
10,980
|
15,566
|
25,531
|
32,428
|
| Acquisition and integration costs |
0
|
2,285
|
0
|
3,584
|
| Restructuring costs |
4,276
|
535
|
6,671
|
919
|
| Add: Other non-performance financial items |
|
|
|
|
| Interest expense and other income (loss), net |
(16,226)
|
(11,641)
|
(31,059)
|
(33,127)
|
| Less: Provision for income taxes |
3,568
|
2,595
|
3,978
|
3,894
|
| Net income |
38,026
|
13,997
|
41,887
|
2,451
|
| Networking Platforms |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
571,487
|
512,206
|
1,061,431
|
961,716
|
| Networking Platforms | Converged Packet Optical |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
502,131
|
435,173
|
914,783
|
824,341
|
| Networking Platforms | Packet Networking |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
66,326
|
68,582
|
138,520
|
116,779
|
| Networking Platforms | Optical Transport |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
3,030
|
8,451
|
8,128
|
20,596
|
| Software and Software-Related Services |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
37,716
|
30,473
|
77,096
|
55,899
|
| Software and Software-Related Services | Software Platforms |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
13,143
|
11,772
|
30,192
|
19,851
|
| Software and Software-Related Services | Software-Related Services |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
24,573
|
18,701
|
46,904
|
36,048
|
| Global Services |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
97,819
|
98,038
|
189,992
|
196,217
|
| Global Services | Maintenance Support and Training |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
58,241
|
57,069
|
113,231
|
113,127
|
| Global Services | Installation and Deployment |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
28,695
|
30,232
|
56,614
|
61,072
|
| Global Services | Consulting and Network Design |
|
|
|
|
| Revenue: |
|
|
|
|
| Revenue |
10,883
|
10,737
|
20,147
|
22,018
|
| Operating Segments |
|
|
|
|
| Segment profit (loss) and the reconciliation to consolidated net income (loss) |
|
|
|
|
| Operating income (loss) |
196,617
|
168,490
|
353,533
|
311,894
|
| Operating Segments | Networking Platforms |
|
|
|
|
| Segment profit (loss) and the reconciliation to consolidated net income (loss) |
|
|
|
|
| Operating income (loss) |
150,464
|
132,606
|
264,210
|
239,588
|
| Operating Segments | Software and Software-Related Services |
|
|
|
|
| Segment profit (loss) and the reconciliation to consolidated net income (loss) |
|
|
|
|
| Operating income (loss) |
4,551
|
35,692
|
12,252
|
(3,382)
|
| Operating Segments | Global Services |
|
|
|
|
| Segment profit (loss) and the reconciliation to consolidated net income (loss) |
|
|
|
|
| Operating income (loss) |
$ 41,602
|
$ 192
|
$ 77,071
|
$ 75,688
|