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Other Balance Sheet Details
 9 Months Ended
Aug. 01, 2020
Balance Sheet Related Disclosures [Abstract]  
Other Balance Sheet Details OTHER BALANCE SHEET DETAILS
As of the dates indicated, accrued liabilities and other short-term obligations are comprised of the following (in thousands):
August 1,
2020		November 2,
2019
Compensation, payroll related tax and benefits (1)
$94,156 $182,363 
Warranty52,166 48,498 
Vacation26,136 22,290 
Foreign currency forward contracts1,273 35 
Contingent consideration— 4,372 
Contingent compensation3,960 — 
Finance lease obligations2,765 2,764 
Interest payable741 1,007 
Other119,833 121,411 
 $301,030 $382,740 

(1) Reduction is primarily due to the timing of bonus payments to employees under Ciena’s annual cash incentive compensation plan.

The following table summarizes the activity in Ciena’s accrued warranty for the fiscal periods indicated (in thousands):
Beginning BalanceCurrent Period ProvisionsSettlementsEnding Balance
Nine Months Ended August 3, 2019$44,740 15,933 (13,993)$46,680 
Nine Months Ended August 1, 2020$48,498 19,172 (15,504)$52,166