Fair Value Measurements (Tables)

6 Months Ended

Apr. 30, 2018

Schedule of the Fair Value of Assets and Liabilities Recorded on a Recurring Basis

As of the date indicated, the following table summarizes the assets and liabilities that are recorded at fair value on a recurring basis (in thousands):



	April 30, 2018
	Level 1		Level 2		Total
Assets:
Money market funds	$	476,187	$	—	$	476,187
U.S. government obligations	—		297,585		297,585
Commercial paper	—		99,745		99,745
Foreign currency forward contracts	—		97		97
Forward starting interest rate swaps	—		6,333		6,333
Total assets measured at fair value	$	476,187	$	403,760	$	879,947

Liabilities:
Foreign currency forward contracts	$	—	$	1,317	$	1,317
Total liabilities measured at fair value	$	—	$	1,317	$	1,317



	October 31, 2017
	Level 1		Level 2		Total
Assets:
Money market funds	$	511,355	$	—	$	511,355
U.S. government obligations	—		298,976		298,976
Commercial paper	—		89,865		89,865
Foreign currency forward contracts	—		227		227
Forward starting interest rate swaps	—		218		218
Total assets measured at fair value	$	511,355	$	389,286	$	900,641

Liabilities:
Foreign currency forward contracts	$	—	$	2,129	$	2,129
Total liabilities measured at fair value	$	—	$	2,129	$	2,129

Schedule of Assets and Liabilities as Presented on Ciena's Condensed Consolidated Balance Sheets

As of the date indicated, the assets and liabilities above are presented on Ciena’s Condensed Consolidated Balance Sheet as follows (in thousands):



	April 30, 2018
	Level 1		Level 2		Total
Assets:
Cash equivalents	$	476,187	$	69,851	$	546,038
Short-term investments	—		268,584		268,584
Prepaid expenses and other	—		97		97
Long-term investments	—		58,895		58,895
Other long-term assets	—		6,333		6,333
Total assets measured at fair value	$	476,187	$	403,760	$	879,947

Liabilities:
Accrued liabilities	$	—	$	1,317	$	1,317
Total liabilities measured at fair value	$	—	$	1,317	$	1,317



	October 31, 2017
	Level 1		Level 2		Total
Assets:
Cash equivalents	$	511,355	$	59,925	$	571,280
Short-term investments	—		279,133		279,133
Prepaid expenses and other	—		227		227
Long-term investments	—		49,783		49,783
Other long-term assets	—		218		218
Total assets measured at fair value	$	511,355	$	389,286	$	900,641

Liabilities:
Accrued liabilities	$	—	$	2,129	$	2,129
Total liabilities measured at fair value	$	—	$	2,129	$	2,129