Fair Value Measurements (Tables)

3 Months Ended

Jan. 31, 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):



	January 31, 2018
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	521,698	$	—	$	—	$	521,698
U.S. government obligations	—		298,025		—		298,025
Commercial paper	—		69,810		—		69,810
Foreign currency forward contracts	—		3,730		—		3,730
Forward starting interest rate swaps	—		4,117		—		4,117
Total assets measured at fair value	$	521,698	$	375,682	$	—	$	897,380

Liabilities:
Foreign currency forward contracts	$	—	$	2,415	$	—	$	2,415
Total liabilities measured at fair value	$	—	$	2,415	$	—	$	2,415



	October 31, 2017
	Level 1		Level 2		Level 3		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):



	January 31, 2018
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	521,698	$	29,941	$	—	$	551,639
Short-term investments	—		278,743		—		278,743
Prepaid expenses and other	—		3,730		—		3,730
Long-term investments	—		59,151		—		59,151
Other long-term assets	—		4,117		—		4,117
Total assets measured at fair value	$	521,698	$	375,682	$	—	$	897,380

Liabilities:
Accrued liabilities	$	—	$	2,415	$	—	$	2,415
Total liabilities measured at fair value	$	—	$	2,415	$	—	$	2,415



	October 31, 2017
	Level 1		Level 2		Level 3		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