The following tables summarize our cash and cash equivalents, and marketable securities on our Condensed Consolidated Balance Sheets as of March 31, 2024 and December 31, 2023 (in thousands):


									Reported as:
March 31, 2024	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Cash and Cash Equivalents		Marketable securities, short-term		Marketable securities, long-term
Cash	$	816,224	$	—	$	—	$	816,224	$	816,224	$	—	$	—
Money market funds	49,581		—		—		49,581		49,581		—		—
Corporate bonds	26,535		3		(417)		26,121		—		24,551		1,570
U.S. government treasury bonds	4,871		—		(101)		4,770		—		2,721		2,049
Asset-backed securities	586		—		(1)		585		—		585		—

U.S. government agency bonds	5,264		—		(20)		5,244		—		5,244		—

Total	$	903,061	$	3	$	(539)	$	902,525	$	865,805	$	33,101	$	3,619


									Reported as:
December 31, 2023	Amortized Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value		Cash and Cash Equivalents		Marketable securities, short-term		Marketable securities, long-term
Cash	$	887,682	$	—	$	—	$	887,682	$	887,682	$	—	$	—
Money market funds	49,756		—		—		49,756		49,756		—		—
Corporate bonds	31,943		5		(676)		31,272		—		28,704		2,568
U.S. government treasury bonds	4,855		—		(99)		4,756		—		—		4,756
Asset-backed securities	1,416		2		(1)		1,417		—		719		698
Municipal bonds	702		—		(2)		700		—		700		—
U.S. government agency bonds	5,215		—		(34)		5,181		—		5,181		—

Total	$	981,569	$	7	$	(812)	$	980,764	$	937,438	$	35,304	$	8,022

The following table summarizes the fair value of our available-for-sale marketable securities classified by contractual maturity as of March 31, 2024 and December 31, 2023 (in thousands):

The securities that we invest in are generally deemed to be low risk based on their credit ratings from the major rating agencies. The longer the duration of these securities, the more susceptible they are to changes in market interest rates and bond yields. As interest rates increase, those securities purchased at a lower yield show a mark-to-market unrealized loss. Our unrealized losses as of March 31, 2024 and December 31, 2023 are primarily due to changes in interest rates and credit spreads.

The following tables summarize the fair value and gross unrealized losses as of March 31, 2024 and December 31, 2023, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position (in thousands):


	As of March 31, 2024
	Less than 12 months				12 Months of Greater				Total
March 31, 2024	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate bonds	$	1,006	$	(3)	$	22,805	$	(414)		$	23,811	$	(417)
U.S. government treasury bonds	2,049		(26)		2,721		(75)			4,770		(101)
Asset-backed securities	535		(1)		—		—			535		(1)
Municipal bonds	—		—		—		—			—		—
U.S. government agency bonds	4,051		(9)		1,193		(11)			5,244		(20)

Total	$	7,641	$	(39)	$	26,719	$	(500)		$	34,360	$	(539)


	As of December 31, 2023
	Less than 12 months				12 Months of Greater				Total
December 31, 2023	Fair Value		Unrealized Loss		Fair Value		Unrealized Loss			Fair Value		Unrealized Loss
Corporate bonds	$	—	$	—	$	27,939	$	(676)		$	27,939	$	(676)
U.S. government treasury bonds	2,044		(11)		2,712		(88)			4,756		(99)
Asset-backed securities	1,018		(1)		83		—			1,101		(1)
Municipal bonds	—		—		700		(2)			700		(2)
U.S. government agency bonds	4,003		(11)		1,178		(23)			5,181		(34)

Total	$	7,065	$	(23)	$	32,612	$	(789)		$	39,677	$	(812)

We enter into factoring transactions on a non-recourse basis with financial institutions to sell certain of our non-U.S. accounts receivable. We account for these transactions as sales of accounts receivables and include the cash proceeds as a part of our cash flows from operations in the Condensed Consolidated Statements of Cash Flows. Total accounts receivable sold under the factoring arrangements was $14.6 million during the three months ended March 31, 2024 and $8.0 million during the three months ended March 31, 2023. Factoring fees on the sales of receivables were recorded in other income (expense), net in our Condensed Consolidated Statement of Operations and were not material.

Fair value is an exit price, representing the amount that would be received from selling an asset or paid to transfer a liability in an orderly transaction between market participants at the measurement date. We use the GAAP fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value. This hierarchy requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs when measuring fair value. The three levels of inputs that may be used to measure fair value:

Level 2 — Observable inputs other than quoted prices included in Level 1, such as quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, or other inputs that are observable or can be corroborated by observable market data for substantially the full term of the asset or liability. We obtain fair values for our Level 2 investments. Our custody bank and asset managers independently use

professional pricing services to gather pricing data which may include quoted market prices for identical or comparable financial instruments, or inputs other than quoted prices that are observable either directly or indirectly, and we are ultimately responsible for these underlying estimates.

Level 3 — Unobservable inputs to the valuation methodology that are supported by little or no market activity and that are significant to the measurement of the fair value of the assets or liabilities. Level 3 assets and liabilities include those whose fair value measurements are determined using pricing models, discounted cash flow methodologies or similar valuation techniques, as well as significant management judgment or estimation.


Description	Balance as of March 31, 2024		Level 1		Level 2
Cash equivalents:
Money market funds	$	49,581	$	49,581	$	—





Short-term investments:

U.S. government agency bonds	5,244		—		5,244
U.S. government treasury bonds	2,721		—		2,721
Corporate bonds	24,551		—		24,551

Asset-backed securities	585		—		585
Long-term investments:
U.S. government treasury bonds	2,049		—		2,049
Corporate bonds	1,570		—		1,570







	$	86,301	$	49,581	$	36,720


Description	Balance as of December 31, 2023		Level 1		Level 2
Cash equivalents:
Money market funds	$	49,756	$	49,756	$	—




Short-term investments:
Corporate bonds	28,704		—		28,704
Municipal bonds	700		—		700
U.S. government agency bonds	5,181		—		5,181
Asset-backed securities	719		—		719



Long-term investments:
U.S. government treasury bonds	4,756		—		4,756
Corporate bonds	2,568		—		2,568


Asset-backed securities	698		—		698






	$	93,082	$	49,756	$	43,326

Our investments in privately held companies in which we cannot exercise significant influence and do not own a majority equity interest or otherwise control are accounted for as an investment in equity securities. We have elected to account for all investments in equity securities in accordance with the measurement alternative. Under the measurement alternative, we record the value of our investments in equity securities at cost, minus impairment, if any. Additionally, we adjust the carrying value of our investments in equity securities to fair value for observable transactions for identical or similar investments of the same issuer.

On April 24, 2023, we entered into a Subscription Agreement (the "April 2023 Subscription Agreement") with Heartland Dental Holding Corporation (“Heartland”). Pursuant to the Subscription Agreement we acquired less than a 5% equity interest through the purchase of Class A Common Stock for $75 million. We are not the primary beneficiary of nor are we able to

Similar to our other investments in equity securities, Heartland is accounted for under the measurement alternative. Based on review of our investment in Heartland, we determined that no adjustments to the carrying value were necessary; therefore, it is properly reflected on our Condensed Consolidated Balance Sheet in Other assets at $75 million.

Investments in equity securities are reported on our Condensed Consolidated Balance Sheet as Other assets. We record upward and downward adjustments in carrying value or impairment, if any, in our investments in equity securities, in other income (expense), net in our Condensed Consolidated Statement of Operations. The carrying value of our investments in equity securities, exclusive of Heartland, were not material as of March 31, 2024 and the associated adjustments to the carrying values, if any, of the investments were not material during the three month periods ended March 31, 2024 and 2023.

Our investments in privately held companies in which we can exercise significant influence are accounted for as equity method investments. We have elected to account for our equity method investments under the fair value option. The carrying value of our equity method investments are reported on our Condensed Consolidated Balance Sheet as other assets and are not material as of March 31, 2024 and December 31, 2023.

We enter into foreign currency forward contracts to minimize the short-term impact of foreign currency exchange rate fluctuations on certain assets and liabilities. These forward contracts are classified within Level 2 of the fair value hierarchy. As a result of the settlement of foreign currency forward contracts, we recognized a net gain of $19.7 million during the three months ended March 31, 2024 and a net loss of $6.4 million during the three months ended March 31, 2023. Recognized gains and losses from the settlement of foreign currency forward contracts are recorded to Other income (expense), net in our Condensed Consolidated Statements of Operations. As of March 31, 2024 and December 31, 2023, the fair value of foreign exchange forward contracts outstanding were not material.

The following tables present the gross notional value of all our foreign exchange forward contracts outstanding as of March 31, 2024 and December 31, 2023 (in thousands):


	March 31, 2024
	Local Currency Amount	Notional Contract Amount (USD)
Euro	€262,300	$	283,818
British Pound	£121,800	153,937
Canadian Dollar	C$96,500	71,174
Polish Zloty	PLN276,400	$	69,117
Chinese Yuan	¥322,800	44,536
Japanese Yen	¥4,300,000	28,547
Brazilian Real	R$88,600	17,650
Mexican Peso	M$270,000	16,265
Israeli Shekel	ILS48,200	13,137
Swiss Franc	CHF7,000	7,776
New Zealand Dollar	NZ$9,900	5,912
New Taiwan Dollar	NT$98,000	3,064
Australian Dollar	A$4,700	3,061
Czech Koruna	Kč44,600	1,905
Korean Won	₩2,300,000	1,708
		$	721,607


	December 31, 2023
	Local Currency Amount	Notional Contract Amount (USD)
Euro	€337,780	$	373,705
Canadian Dollar	C$108,900	82,166
Polish Zloty	PLN276,900	70,393
British Pound	£45,590	58,005
Chinese Yuan	¥244,500.00	34,361
Swiss Franc	CHF28,600	34,132
Japanese Yen	¥3,577,000	25,347
Israeli Shekel	ILS78,700	21,800
Brazilian Real	R$80,500	16,563
Mexican Peso	M$230,000	13,593
New Zealand Dollar	NZ$6,600	4,161
Australian Dollar	A$4,300	2,921
New Taiwan Dollar	NT$89,000	2,919
Czech Koruna	Kč60,200	2,687
Korean Won	₩2,200,000	1,709
		$	744,462