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Fair Value and Derivative Instruments
9 Months Ended
Sep. 30, 2023
Fair Value Disclosures [Abstract]  
Fair Value and Derivative Instruments Fair Value and Derivative Instruments
Whenever possible, the fair values of our financial assets and liabilities are determined using quoted market prices of identical securities or quoted market prices of similar securities from active markets. The three levels of inputs that may be used to measure fair value are as follows:
Level 1 valuations are obtained from real-time quotes for transactions in active exchange markets involving identical securities;
Level 2 valuations utilize significant observable inputs, such as quoted prices for similar assets or liabilities, quoted prices near the reporting date in markets that are less active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the assets or liabilities; and
Level 3 valuations utilize unobservable inputs to the valuation methodology and include our own data about assumptions market participants would use in pricing the asset or liability based on the best information available under the circumstances.

We did not have any transfers of assets or liabilities measured at fair value on a recurring basis to or from Level 1, Level 2 or Level 3 during the three and nine months ended September 30, 2023 or the year ended December 31, 2022.

The carrying values of Cash, Accounts receivable, net, Restricted cash, Prepaid expenses and other current assets, Accounts payable, and Accrued liabilities approximate fair value due to their short maturities.

No changes were made to our valuation techniques during the first nine months of fiscal 2023.
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Assets and liabilities measured at fair value on a recurring basis were as follows (in thousands): 
September 30, 2023Level 1Level 2Level 3Total
Assets:
Cash equivalents:
Money market funds$26,936 $— $— $26,936 
U.S. treasuries2,290 — — 2,290 
Commercial paper— 1,790 — 1,790 
29,226 1,790 — 31,016 
Marketable securities:
 U.S. treasuries46,403 — — 46,403 
 Certificates of deposit— 238 — 238 
 U.S. agency securities— 12,141 — 12,141 
 Corporate bonds— 61,106 — 61,106 
 Commercial paper— 15,805 — 15,805 
46,403 89,290 — 135,693 
Promissory note receivable— — 922 922 
Interest rate swap derivative contract— 2,536 — 2,536 
Total assets$75,629 $93,616 $922 $170,167 
Liabilities:
Foreign exchange derivative contracts$— $(781)$— $(781)
Total liabilities$— $(781)$— $(781)

December 31, 2022Level 1Level 2Level 3Total
Assets:
Cash equivalents:
Money market funds$21,279 $— $— $21,279 
Commercial paper— 4,969 — 4,969 
U.S. agency securities— 996 — 996 
21,279 5,965 — 27,244 
Marketable securities:
U.S. treasuries25,019 — — 25,019 
Certificates of deposit— 706 — 706 
U.S. agency securities— 11,045 — 11,045 
Corporate bonds— 67,396 — 67,396 
Commercial paper— 24,840 — 24,840 
25,019 103,987 — 129,006 
Foreign exchange derivative contracts— 664 — 664 
Promissory note receivable— — 943 943 
Interest rate swap derivative contract— 2,374 — 2,374 
Total assets$46,298 $112,990 $943 $160,231 
Liabilities:
Foreign exchange derivative contracts$— $(193)$— $(193)
Total liabilities$— $(193)$— $(193)
 
Cash Equivalents
The fair value of our cash equivalents is determined based on quoted market prices for similar or identical securities.

Marketable Securities
We classify our marketable securities as available-for-sale and value them utilizing a market approach. Our investments are
priced by pricing vendors who provide observable inputs for their pricing without applying significant judgment. Broker pricing is used mainly when a quoted price is not available, the investment is not priced by our pricing vendors or when a broker price is more reflective of fair value. Our broker-priced investments are categorized as Level 2 investments because fair value is based on similar assets without applying significant judgments. In addition, all investments have a sufficient trading volume to demonstrate that the fair value is appropriate.

Unrealized gains and losses were immaterial and were recorded as a component of Accumulated other comprehensive loss in our Condensed Consolidated Balance Sheets. We did not have any other-than-temporary unrealized gains or losses at either period end included in these financial statements.

Interest Rate Swap
The fair value of our interest rate swap contract is determined at the end of each reporting period based on valuation models that use interest rate yield curves as inputs. For accounting purposes, our interest rate swap contract qualifies for, and is designated as a cash flow hedge. The hedged risk is the interest rate exposure to changes in interest payments attributable to changes in our variable-rate interest over the interest rate swap term. The changes in cash flows of the interest rate swap are expected to exactly offset changes in cash flows of the variable-rate debt. Cash settlements, in the form of cash payments or cash receipts, of the interest rate swap, in the form of cash payments or cash receipts, are recognized as a component of interest expense. The cash flows associated with the interest rate swaps are reported in Net cash provided by operating activities in our Condensed Consolidated Statements of Cash Flows and the fair value of the interest rate swap contracts are recorded within Prepaid expenses and other current assets and Other assets in our Condensed Consolidated Balance Sheets.

Foreign Exchange Derivative Contracts
We operate and sell our products in various global markets. As a result, we are exposed to changes in foreign currency exchange rates. We utilize foreign currency forward contracts to hedge against future movements in foreign exchange rates that affect certain existing foreign currency denominated assets and liabilities and forecasted foreign currency revenue and expense transactions. Under this program, our strategy is to have increases or decreases in our foreign currency exposures mitigated by gains or losses on the foreign currency forward contracts in order to mitigate the risks and volatility associated with foreign currency transaction gains or losses.

We do not use derivative financial instruments for speculative or trading purposes. For accounting purposes, certain of our foreign currency forward contracts are not designated as hedging instruments and, accordingly, we record the fair value of these contracts as of the end of our reporting period in our Condensed Consolidated Balance Sheets with changes in fair value recorded within Other income, net in our Condensed Consolidated Statement of Income for both realized and unrealized gains and losses. Certain of our foreign currency forward contracts are designated as cash flow hedges, and, accordingly, we record the fair value of these contracts as of the end of our reporting period in our Condensed Consolidated Balance Sheets with changes in fair value recorded as a component of Accumulated other comprehensive loss and reclassified into earnings in the same period in which the hedged transaction affects earnings, and in the same line item on the Condensed Consolidated Statements of Income as the impact of the hedge transaction.

The fair value of our foreign exchange derivative contracts was determined based on current foreign currency exchange rates and forward points. All of our foreign exchange derivative contracts outstanding at September 30, 2023 will mature by the third quarter of fiscal 2024.

The following table provides information about our foreign currency forward contracts outstanding as of September 30, 2023 (in thousands):
CurrencyContract PositionContract Amount
(Local Currency)
Contract Amount
(U.S. Dollars)
Euro DollarBuy20,312 $22,427 
Euro DollarSell3,576 3,786 
Japanese YenSell2,759,293 18,535 
Korean WonBuy1,520,865 1,133 
Taiwan DollarSell59,367 1,839 

Our foreign currency contracts are classified within Level 2 of the fair value hierarchy as they are valued using pricing models that utilize observable market inputs.
Assets and Liabilities Measured at Fair Value on a Non-Recurring BasisWe measure and report our non-financial assets such as Property, plant and equipment, Goodwill and Intangible assets at fair value on a non-recurring basis if we determine these assets to be impaired or in the period when we make a business acquisition. Other than as discussed in Note 8, Restructuring Charges, there were no assets or liabilities measured at fair value on a nonrecurring basis during the three and nine months ended September 30, 2023 or September 24, 2022.