Fair Value Measurements (Tables)

12 Months Ended

Oct. 31, 2019

Summary of the fair value of assets and liabilities recorded on a recurring basis

As of the dates indicated, the following tables summarize the fair value of assets and liabilities that were recorded at fair value on a recurring basis (in thousands):



	October 31, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	759,114	$	—	$	—	$	759,114
U.S. government obligations	—		119,954		—		119,954
Foreign currency forward contracts	—		1,570		—		1,570
Total assets measured at fair value	$	759,114	$	121,524	$	—	$	880,638

Liabilities:
Foreign currency forward contracts	$	—	$	35	$	—	$	35
Forward starting interest rate swaps	—		21,093		—		21,093
Contingent consideration	—		—		3,705		3,705
Total liabilities measured at fair value	$	—	$	21,128	$	3,705	$	24,833



	October 31, 2018
	Level 1		Level 2		Level 3		Total
Assets:
Money market funds	$	590,684	$	—	$	—	$	590,684
U.S. government obligations	—		197,988		—		197,988
Commercial paper	—		69,888		—		69,888
Foreign currency forward contracts	—		133		—		133
Forward starting interest rate swaps	—		779		—		779
Total assets measured at fair value	$	590,684	$	268,788	$	—	$	859,472

Liabilities:
Foreign currency forward contracts	$	—	$	3,231	$	—	$	3,231
Debt conversion liability	—		164,212		—		164,212
Contingent consideration	—		—		10,900		10,900
Total liabilities measured at fair value	$	—	$	167,443	$	10,900	$	178,343

Assets and liabilities are presented on Ciena's Condensed Consolidated Balance Sheet

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



	October 31, 2019
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	759,114	$	—	$	—	$	759,114
Short-term investments	—		109,940		—		109,940
Prepaid expenses and other	—		1,570		—		1,570
Long-term investments	—		10,014		—		10,014
Total assets measured at fair value	$	759,114	$	121,524	$	—	$	880,638

Liabilities:
Accrued liabilities	$	—	$	35	$	—	$	35
Other long-term obligations	—		21,093		3,705		24,798
Total liabilities measured at fair value	$	—	$	21,128	$	3,705	$	24,833



	October 31, 2018
	Level 1		Level 2		Level 3		Total
Assets:
Cash equivalents	$	590,684	$	59,925	$	—	$	650,609
Short-term investments	—		148,981		—		148,981
Prepaid expenses and other	—		133		—		133
Long-term investments	—		58,970		—		58,970
Other long-term assets	—		779		—		779
Total assets measured at fair value	$	590,684	$	268,788	$	—	$	859,472

Liabilities:
Accrued liabilities	$	—	$	3,231	$	—	$	3,231
Debt conversion liability	—		164,212		—		164,212
Other long-term obligations	—		—		10,900		10,900
Total liabilities measured at fair value	$	—	$	167,443	$	10,900	$	178,343