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Summary of Significant Accounting Policies (Policies)

6 Months Ended

Jun. 30, 2022

The preparation of condensed consolidated financial statements in conformity with U.S. GAAP requires management to make certain estimates, judgments and assumptions that affect the reported amounts of assets and liabilities at the date of the financial statements, as well as the reported amounts of revenue and expenses during the reporting periods. These estimates, judgments and assumptions are based on historical data and experience available at the date of the accompanying condensed consolidated financial statements, as well as various other factors management believes to be reasonable under the circumstances, including but not limited to the potential impacts arising from the recent global pandemic related to COVID-19. As the extent and duration of the impacts from COVID-19 remain unclear, the Company’s estimates and assumptions may evolve as conditions change. Actual results could differ significantly from these estimates.

On an on-going basis, management evaluates its estimates, primarily those related to: (i) revenue recognition criteria; (ii) accounts receivable and allowances for credit losses; (iii) the useful lives of fixed assets and intangible assets; (iv) estimates of tax liabilities; and (v) valuation of intangible assets and goodwill.

Marketable Securities

All marketable debt securities, which consist of corporate debt securities, municipal bonds, U.S. government and agency debt securities, U.S. treasury bills, and Yankee debt securities issued by foreign governments or entities and denominated in U.S. dollars have been classified as “available-for-sale,” and are carried at fair value. Net unrealized gains and losses, net of any related tax effects, are excluded from earnings and are included in other comprehensive income (loss) and reported as a separate component of stockholders’ equity until realized. Realized gains and losses on marketable debt securities are included in interest and other income, net, in the accompanying Condensed Consolidated Statements of Income. The cost of any marketable debt securities sold is based on the specific-identification method. The amortized cost of marketable debt securities is adjusted for amortization of premiums and accretion of discounts to maturity. Interest on marketable debt securities is included in interest and other income, net. In accordance with the Company’s investment policy, management invests to diversify credit risk and only invests in securities with high credit quality, including U.S. government securities.

The Company’s investments in marketable equity securities are measured at fair value with the related gains and losses, realized and unrealized, recognized in interest and other income, net, in the accompanying Condensed Consolidated Statements of Income. The cost of any marketable equity securities sold is based on the specific-identification method.

For available-for-sale debt securities, in an unrealized loss, the Company determines whether a credit loss exists. The credit loss is estimated by considering available information relevant to the collectability of the security and information about past events, current conditions, and reasonable and supportable forecasts. The Company compares the present value of cash flows expected to be collected from the security with the amortized cost basis of the security. If the present value of cash flows to be collected is less than the amortized basis of the security, a credit loss exists, and any credit loss is recorded as a charge to interest and other income, net, not to exceed the amount of the unrealized loss. If the Company has an intent to sell, or if it is more likely than not that the Company will be required to sell a debt security in an unrealized loss position before recovery of its amortized cost basis, the Company will write down the security to its fair value and record the corresponding charge as a component of interest and other income, net.

Trade Accounts Receivable and Allowance for Credit Losses

Trade accounts receivable are stated at the amount the Company expects to collect. The Company maintains an allowance for credit losses for expected uncollectible trade accounts receivable, which is recorded as an offset to trade accounts receivable, and changes in allowance for credit losses are classified as a general and administrative expense in the accompanying Condensed Consolidated Statements of Income. The Company assesses collectability by reviewing trade accounts receivable on a collective basis where similar risk characteristics exist and on an individual basis when it identifies specific customers that have deterioration in credit quality such that they may no longer share similar risk characteristics with the other receivables. In determining the amount of the allowance for credit losses, the Company uses a probability-of-default and loss given default model, which allows the ability to define a point of default and measure credit losses for receivables that have reached the point of default for purposes of calculating the allowance for credit losses. Loss given default represents the likelihood that a receivable that has reached the point of default will not be collected in full. The Company updates its probability-of-default and loss given default factors annually to incorporate the most recent historical data and adjusts the quantitative portion of the reserve through its qualitative reserve overlay. The Company looks at qualitative factors such as general economic conditions in determining expected credit losses. During the three and six months ended June 30, 2022, the Company recorded $7.2 million and $18.7 million of provision for credit losses for trade accounts receivable, respectively. During the three and six months ended June 30, 2021, the Company recorded $2.2 million and $3.3 million of provision for credit losses for trade accounts receivable, respectively.

Redeemable Preferred Stock Investment

The redeemable preferred stock investment of $12.0 million as of June 30, 2022 represents the fair value of redeemable preferred stock of a private company, that the Company purchased in July 2021. The investment is classified as available-for-sale debt securities. The fair value of available-for-sale debt security is included in the Consolidated Statement of Balance Sheets. Unrealized loss of $8.0 million is excluded from earnings and reported in other comprehensive income (loss) as of June 30, 2022. Since the Company intends on holding the preferred stock, and the preferred stock is not redeemable until July 2027, the investment is recorded as a long-term investment.

Foreign Currency Translation and Foreign Currency Transactions

The Company translates the assets and liabilities of its non-U.S. dollar functional currency subsidiaries into U.S. dollars using exchange rates in effect at the end of each period. Expenses for these subsidiaries are translated using rates that approximate those in effect during the period. Gains and losses from these translations are recognized in foreign currency translation included in accumulated other comprehensive income (loss) in the accompanying Condensed Consolidated Statements of Stockholders’ Equity. Loss from these translations were $1.9 million and $1.8 million in the three and six months ended June 30, 2022, respectively. Gain

from these translations were not significant in the three and six months ended June 30, 2021. The Company and its subsidiaries that use the U.S. dollar as their functional currency remeasure monetary assets and liabilities at exchange rates in effect at the end of each period, whereas reagents and supplies, property and nonmonetary assets and liabilities are measured at historical rates. Losses from these remeasurements were not significant in the three and six months ended June 30, 2022 and 2021.

Comprehensive Income (Loss)

Comprehensive income (loss) is comprised of net income (loss) and other comprehensive income (loss). Other comprehensive income (loss) consists of net unrealized gain or loss on available-for-sale debt securities, net of tax, and foreign currency translation adjustments from the Company's subsidiaries not using the U.S. dollar as their functional currency. Reclassifications from other comprehensive income (loss) to net earnings were not significant in the three and six months ended June 30, 2022 and 2021. The tax effects related to net unrealized loss on available-for-sale debt securities were $1.3 million and $5.8 million in the three and six months ended June 30, 2022, respectively. The tax effects were not significant in the three and six months ended June 30, 2021.

Leases

The Company determines if an arrangement is a lease at inception by evaluating whether the arrangement conveys the right to use an identified asset and whether the Company obtains substantially all of the economic benefits from and has the ability to direct the use of the asset. Operating and finance lease right-of-use assets, or ROU assets, short-term lease liabilities, and long-term lease liabilities are included in other long-term assets, accrued liabilities, and other long-term liabilities, respectively, in the accompanying Condensed Consolidated Balance Sheets.

Lease ROU assets represent the Company’s right to use an underlying asset for the lease term. Lease liabilities represent the Company’s obligation to make lease payments arising from the lease. Lease ROU assets and liabilities are recognized at the commencement date based on the present value of lease payments over the lease term, including options to extend the lease when it is reasonably certain that the Company will exercise that option. The Company uses its incremental borrowing rate based on the information available at the commencement date, including inquiries with its bank, in determining the present value of lease payments since its leases do not provide an implicit rate. Lease ROU assets consist of initial measurement of lease liabilities, any lease payments made to lessor on or before the lease commencement date, minus any lease incentive received, and any initial direct costs incurred by the Company. Operating lease expense for lease payments is recognized on a straight-line basis over the lease term. For finance lease, ROU assets are amortized on a straight-line basis from the commencement date to the earlier of the end of useful life of the ROU assets or the end of the lease term. Amortization of ROU assets and interest on the lease liability for finance leases are included as charges to the accompanying Condensed Consolidated Statements of Income.

Lease ROU assets and liabilities arising from business combinations are recognized and measured at the acquisition dates as if an acquired lease were a new lease at the date of acquisition using the Company’s incremental borrowing rate unless the discount rate is implicit in the lease. The Company elects to not to recognize assets or liabilities as of the acquisition dates for leases that, on the acquisition dates, have a remaining lease term of 12 months or less. The Company also retains the acquirees’ classification of the leases if there are no modifications as part of the business combinations.

The Company leases and subleases out space in buildings it owns or leases to third-party tenants or subtenants under noncancelable operating leases. The Company recognizes lease payments as income over the lease terms on a straight-line basis and recognizes variable lease payments as income in the period in which the changes in facts and circumstances on which the variable lease payments are based occur. The net rental income is included in the interest and other income, net, in the accompanying Condensed Consolidated Statement of Income.

Concentration of Customers

In certain periods, a small number of customers has accounted for a significant portion of the Company’s revenue. After aggregating customers that are under common control or affiliation, two customers contributed 15% and 12% of the Company's revenue for the three months ended June 30, 2022, respectively, and one customer contributed 23% of the Company's revenue for the six months ended June 30, 2022. Two customers contributed 20% and 16% of the Company’s revenue for the three months ended June 30, 2021, respectively, and two customers contributed 24% and 11% of the Company’s revenue for the six months ended June 30, 2021, respectively. No customer comprised 10% or more of total accounts receivable as of June 30, 2022 and December 31, 2021.

Revenue from Contracts with Customers

Disaggregation of Revenue

The Company classifies its customers into three payor types: (i) Insurance, including claim reimbursement from the U.S. Health Resources and Services Administration, or HRSA, for uninsured individuals, (ii) Institutional customers, including hospitals, medical institutions, other laboratories, governmental bodies, municipalities and large corporations, or (iii) Patients who pay directly, as the Company believes this best depicts how the nature, amount, timing, and uncertainty of its revenue and cash flows are affected by economic factors. The following table summarizes revenue from contracts with customers by payor type for the three and six months ended June 30, 2022 and 2021.


	Three Months Ended June 30,				Six Months Ended June 30,
	2022		2021		2022		2021
	(in thousands)
Testing Services by payor
Insurance	$	63,790	$	49,520	$	274,467	$	257,078
Institutional customers		61,232		103,602		170,700		255,171
Patients		319		494		442		796
Total Revenue	$	125,341	$	153,616	$	445,609	$	513,045

The insurance revenue category above includes zero and $37.1 million for the three months ended June 30, 2022 and 2021, respectively, and $106.7 million and $149.9 million for the six months ended June 30, 2022 and 2021, respectively, for services related to claims covered by the HRSA COVID-19 Uninsured Program. The HRSA program stopped accepting claims at 11:59 p.m. on March 22, 2022.

There was no material variable consideration recognized in the current period that relates to performance obligations that were completed in the prior period.

Collection of the Company’s net revenues from insurers is normally a function of providing complete and correct billing information within the various filing deadlines. Provided the Company has billed insurers accurately with complete information prior to the established filing deadline, there has historically been little to no credit risk. If there has been a delay in billing, the Company determines if the amounts in question will likely go past the filing deadline, and if so, the Company will reserve accordingly for the billing.

Contract Balances

Receivables from contracts with customers - Receivables from contracts with customers are included within trade accounts receivable on the Condensed Consolidated Balance Sheets. Net receivable from Insurance and Institutional customers represented 76% and 24%, respectively, as of June 30, 2022. Net receivable from Insurance and Institutional customers represented 47% and 53%, respectively, as of December 31, 2021.

Contracts assets and liabilities - Contract assets from contracts with customers associated with contract execution and certain costs to fulfill a contract are included in other current assets in the accompanying Condensed Consolidated Balance Sheets. Contract liabilities are recorded when the Company receives payment prior to completing its obligation to transfer goods or services to a customer. Contract liabilities are included in the Condensed Consolidated Balance Sheets. Revenues of $4.7 million and $1.7 million were recognized for the three months ended June 30, 2022 and 2021, respectively, and $14.4 million and $25.5 million for the six months were recognized for the six months ended June 30, 2022 and 2021, respectively, related to contract liabilities at the beginning of the respective periods.

Reagents and Supplies

The Company maintains reagents and other consumables primarily used in sample collections and testing which are valued at the lower of cost or net realizable value. Cost is determined using actual costs on a first-in, first-out basis. The reagents and supplies were included in other current assets in the accompanying Condensed Consolidated Balance Sheets.

Customer Deposit

Customer deposit in the accompanying Condensed Consolidated Balance Sheets consists primarily of payments received from customers in excess of their outstanding trade accounts receivable balances, and the excess payments will be refunded to the customers or offset against future testing receivables.

Business Combination

The Company uses the acquisition method of accounting and allocates the fair value of purchase consideration to the assets acquired and liabilities assumed from an acquiree based on their respective fair values as of the acquisition date. The excess of the fair value of purchase consideration over the fair value of these assets acquired and liabilities assumed is recorded as goodwill. When determining the fair values of assets acquired and liabilities assumed, management makes significant estimates and assumptions, especially with respect to intangible assets. Critical estimates in valuing intangible assets include, but are not limited to, expected future cash flows, which includes consideration of future growth and margins, future changes in technology, expected cost and time to develop in-process research and development, brand awareness and discount rates. Fair value estimates are based on the assumptions that management believes a market participant would use in pricing the asset or liability.

Goodwill

Goodwill is not amortized but is subject to impairment tests on an annual basis, or more frequently if indicators of potential impairment exist, and goodwill is written down when it is determined to be impaired. The Company typically performs an annual impairment review in the fourth quarter of each fiscal year unless one had been performed previously within the past 12 months and compares the fair value of the reporting unit in which the goodwill resides to its carrying value.

Restructuring Costs

Restructuring costs represent one-time employee termination benefits provided to employees associated with a newly acquired entity that were involuntarily terminated. A plan of termination was approved and authorized by management in the second quarter of 2022. The plan identified specific employees to be terminated and established terms of benefits those employees would receive upon termination. Total restructuring costs incurred in the three and six months ended June 30, 2022 were $2.9 million, and payable balance as of June 30, 2022 was $2.7 million, which is included in accrued liabilities in the accompanying Condensed Consolidated Balance Sheets. The plan of termination is expected to be completed by September 2022. There were no such costs prior to the second quarter of 2022.

Recent Accounting Pronouncements

The Company evaluates all Accounting Standards Updates, or ASUs, issued by the Financial Accounting Standards Board, or FASB, for consideration of their applicability. ASUs not included in the Company’s disclosures were assessed and determined to be either not applicable or are not expected to have a material impact on the Company’s condensed consolidated financial statements.