OTHER BALANCE SHEET DETAILS

As of the dates indicated, other long-term assets are comprised of the following (in thousands):



	January 31, 2016		October 31, 2015
Maintenance spares, net	$	56,217	$	55,259
Deferred debt issuance costs, net	10,722		10,820
Financing receivable	—		10,107
Other	8,134		8,470
	$	75,073	$	84,656

Deferred debt issuance costs relate to Ciena's convertible notes payable (described in Note 16 below), Term Loan (described in Note 16 below) and ABL Credit Facility (described in Note 17 below). Deferred debt issuance costs are amortized using the straight-line method, which approximates the effect of the effective interest rate method, through the maturity of the related debt. The amortization of deferred debt issuance costs is included in interest expense, and was $1.3 million and $1.1 million during the first three months of fiscal 2015 and fiscal 2016, respectively.

As of the dates indicated, accrued liabilities and other short-term obligations are comprised of the following (in thousands):



	January 31, 2016		October 31, 2015
Compensation, payroll related tax and benefits	$	63,860	$	109,466
Warranty	56,636		56,654
Vacation	32,963		34,189
Capital lease obligations	3,784		4,923
Interest payable	5,656		5,389
Other	99,314		105,662
	$	262,213	$	316,283

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



Three months ended	Beginning					Ending
January 31,	Balance		Provisions	Settlements		Balance
2015	$	55,997	2,293	(4,908	)	$	53,382
2016	$	56,654	4,971	(4,989	)	$	56,636

As of the dates indicated, deferred revenue is comprised of the following (in thousands):



	January 31, 2016			October 31, 2015
Products	$	54,177		$	66,527
Services	119,514			122,546
	173,691			189,073
Less current portion	(106,664		)	(126,111		)
Long-term deferred revenue	$	67,027		$	62,962

As of the dates indicated, other long-term obligations are comprised of the following (in thousands):



	January 31, 2016		October 31, 2015
Construction liability	$	28,989	$	18,663
Capital lease obligations	13,639		13,794
Income tax liability	12,164		13,308
Deferred tenant allowance	9,557		9,807
Straight-line rent	6,479		6,237
Forward starting interest rate swap	5,851		5,522
Other	5,037		5,209
	$	81,716	$	72,540

Ciena capitalizes construction in progress and records a corresponding long-term liability for build-to-suit lease agreements where Ciena is considered the owner during the construction period for accounting purposes.

The following is a schedule by fiscal years of future minimum lease payments under capital leases and the present value of minimum lease payments as of January 31, 2016 (in thousands):



Period ended October 31,
2016 (remaining nine months)	$	4,328
2017	1,884
2018	1,547
2019	1,547
2020	1,357
Thereafter	17,263
Net minimum capital lease payments	27,926
Less: Amount representing interest	(10,503		)
Present value of minimum lease payments	17,423
Less: Current portion of present value of minimum lease payments	(3,784		)
Long-term portion of present value of minimum lease payments	$	13,639