OTHER BALANCE SHEET DETAILS (Tables)
 6 Months Ended
Apr. 30, 2017
Balance Sheet Related Disclosures [Abstract]  
Other long-term assets
As of the dates indicated, other long-term assets are comprised of the following (in thousands):

 
April 30,
2017
 
October 31,
2016
Maintenance spares, net
$
48,447

 
$
49,535

Deferred debt issuance costs, net (1)
1,202

 
1,363

Financing receivable
—

 
1,870

Other
15,542

 
15,352

 
$
65,191

 
$
68,120



(1) As described in Note 2 above, in connection with Ciena's adoption of ASU 2015-03 effective January 31, 2017, deferred debt issuance costs associated with its convertible notes and term loans were retrospectively reclassified from other long-term assets to current portion of long-term debt and long-term debt, net on the Condensed Consolidated Balance Sheets. The deferred debt issuance costs reflected relate to Ciena's ABL Credit Facility (described in Note 17 below). The amortization of deferred debt issuance costs for Ciena's ABL Credit Facility is included in interest expense, and was $0.2 million and $0.3 million during the first six months of fiscal 2017 and 2016, respectively.
Accrued liabilities
As of the dates indicated, accrued liabilities and other short-term obligations are comprised of the following (in thousands):
 
April 30,
2017
 
October 31,
2016
Compensation, payroll related tax and benefits
$
71,567

 
$
106,687

Warranty
46,025

 
52,324

Vacation
40,317

 
36,112

Capital lease obligations
2,716

 
2,321

Interest payable
4,312

 
4,649

Other
97,545

 
108,260

 
$
262,482

 
$
310,353
Accrued warranty
The following table summarizes the activity in Ciena’s accrued warranty for the fiscal periods indicated (in thousands):

Six months ended
 
Beginning
 
 
 
 
 
Ending
April 30,
 
Balance
 
Provisions
 
Settlements
 
Balance
2016
 
$
56,654

 
9,563

 
(10,196
)
 
$
56,021

2017
 
$
52,324

 
2,347

 
(8,646
)
 
$
46,025
Deferred revenue
As of the dates indicated, deferred revenue is comprised of the following (in thousands):

 
April 30,
2017
 
October 31,
2016
Products
$
49,909

 
$
45,216

Services
136,954

 
137,647

 
186,863

 
182,863

Less current portion
(105,514
)
 
(109,009
)
Long-term deferred revenue
$
81,349

 
$
73,854
Other liabilities
As of the dates indicated, other long-term obligations are comprised of the following (in thousands):

 
April 30,
2017
 
October 31,
2016
Construction liability
$
33,157

 
$
57,602

Capital lease obligations
42,197

 
24,298

Income tax liability
14,001

 
14,122

Deferred tenant allowance
8,663

 
9,164

Straight-line rent
7,277

 
6,406

Forward starting interest rate swap
1,070

 
5,967

Other
6,889

 
6,835

 
$
113,254

 
$
124,394
Future minimum lease payments under capital leases
The following is a schedule by fiscal year of future minimum lease payments under capital leases and the present value of minimum lease payments as of April 30, 2017 (in thousands):

Period ended October 31,
 
2017 (remaining six months)
$
2,966

2018
5,796

2019
5,378

2020
4,399

2021
4,292

Thereafter
51,284

Net minimum capital lease payments
74,115

Less: Amount representing interest
(29,202
)
Present value of minimum lease payments
44,913

Less: Current portion of present value of minimum lease payments
(2,716
)
Long-term portion of present value of minimum lease payments
$
42,197