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FAIR VALUE
9 Months Ended
Jul. 03, 2020
Fair Value Disclosures [Abstract]  
FAIR VALUE FAIR VALUE
Assets/Liabilities Measured at Fair Value on a Recurring Basis
In the tables below, the Company has segregated all assets and liabilities that are measured at fair value on a recurring basis into the most appropriate level within the fair value hierarchy based on the inputs used to determine the fair value at the measurement date.
 Fair Value Measurements at July 3, 2020
Quoted Prices in
Active Markets
for Identical
Instruments
Significant
Other
Observable
Inputs
Significant
Unobservable
Inputs
Total
Type of Instruments(Level 1)(Level 2)(Level 3)Balance
(In millions)    
Assets:    
Cash equivalents:
Money market funds$124.0  $—  $—  $124.0  
Equity investment—  47.0  —  47.0  
Available-for-sale securities:
MPTC Series B-1 Bonds —  24.4  —  24.4  
MPTC Series B-2 Bonds —  22.7  —  22.7  
APTC securities—  5.3  —  5.3  
Derivative assets—  1.6  —  1.6  
Total assets measured at fair value$124.0  $101.0  $—  $225.0  
Liabilities:    
Derivative liabilities$—  $(0.1) $—  $(0.1) 
Contingent consideration—  —  (65.4) (65.4) 
Total liabilities measured at fair value$—  $(0.1) $(65.4) $(65.5) 
Fair Value Measurements at September 27, 2019
Quoted Prices in Active Markets for Identical InstrumentsSignificant
Other
Observable
Inputs
Significant Unobservable InputsTotal
Type of Instruments(Level 1)(Level 2)(Level 3)Balance
(In millions)
Assets:
Cash equivalents:
Money market funds$0.2  $—  $—  $0.2  
Available-for-sale securities:
MPTC Series B-1 Bonds—  27.1  —  27.1  
MPTC Series B-2 Bonds—  25.1  —  25.1  
APTC securities—  6.6  —  6.6  
Derivative assets—  2.8  —  2.8  
Total assets measured at fair value$0.2  $61.6  $—  $61.8  
Liabilities:
Contingent consideration$—  $—  $(75.3) $(75.3) 
Total liabilities measured at fair value$—  $—  $(75.3) $(75.3) 

The Company classifies its money market funds as Level 1 because they have daily liquidity, quoted prices for the underlying investments can be obtained, and there are active markets for the underlying investments. The Company's equity investment is in a publicly-traded company that is valued at quoted market prices and is subject to a 180-day lock up period. As such, it is classified as Level 2.

The Company's Level 2 available-for-sale securities consist of bonds for the Maryland Proton Therapy Center ("MPTC") and the Alabama Proton Therapy Center (“APTC”). The observable inputs for these securities are comparable bond issues, broker/dealer quotations for the same or similar investments in active markets, and other observable inputs such as yields, credit risks, default rates, and volatility. In the three months ended July 3, 2020, the MPTC Series B-1 and B-2 bonds (collectively "MPTC" bonds) and the APTC securities were determined to be other-than-temporarily impaired due to a decrease in trade prices of comparable bonds. The Company believes that it is more likely than not that the Company will not recover the losses before these bonds are sold and as such, the Company recorded impairment charges of $8.3 million on its MPTC bonds and $0.9 million on its APTC securities. The Company's available-for-sale securities are included in other assets on the Company's Condensed Consolidated Balance Sheets, except for amounts related to short-term interest receivable. See Note 14, "Proton Solutions Loans and Investments," for further information about the available-for-sale securities. As of July 3, 2020, and September 27, 2019, the carrying amount of the Company's Level 1 money market funds and Level 2 equity investments and available-for-sale securities approximated their respective fair values.
The Company has elected to use the income approach to value its derivative instruments using standard valuation techniques and Level 2 inputs, such as currency spot rates, forward points and credit default swap spreads. The Company’s derivative instruments are generally short-term in nature, typically one month to fifteen months in duration.

The Company generally measures the fair value of its Level 3 contingent consideration liabilities based on Monte Carlo pricing models with key assumptions that include estimated revenues of the acquired business, the probability of completing certain milestone targets during the earn-out period, revenue volatility and estimated discount rates corresponding to the periods of expected payments. If the estimated revenues or probability of completing certain milestones were to increase or decrease during the respective earn-out period, the fair value of the contingent consideration would increase or decrease, respectively. If the estimated discount rates were to increase or decrease, the fair value of contingent consideration would decrease or increase, respectively. Changes in key assumptions may result in an increase or decrease in the fair value of contingent consideration. The Company's contingent consideration is from its business combinations and is included in accrued liabilities and other long-term liabilities on the Condensed Consolidated Balance Sheets.
The following table presents the reconciliation for liabilities measured and recorded at fair value on a recurring basis using significant unobservable inputs (Level 3):
(In millions)Contingent
Consideration
Balance at September 27, 2019$(75.3) 
Settlements11.4  
Adjustments due to the effect of foreign exchange(0.2) 
Change in fair value recognized in earnings(1.3) 
Balance at July 3, 2020$(65.4) 

Transfers between fair value measurement levels are recognized at the end of the reporting period.
Fair Value of Other Financial Instruments
The fair values of certain of the Company’s financial instruments, including bank deposits included in cash equivalents, trade and unbilled receivables, net of allowance for doubtful accounts, accounts payable, and short-term borrowings approximate their carrying amounts due to their short maturities.
As of July 3, 2020, the fair value of the CPTC Loans (as defined in Note 14, "Proton Solutions Loans and Investments,") approximated its carrying value of $11.8 million. The Company recorded a $40.5 million impairment charge on the CPTC Loans in the nine months ended July 3, 2020. The carrying value is based on the present value of expected future cash payments discounted at a rate reflecting the nature and duration of the loans, risks involved with the California Proton Therapy Center ("CPTC"), and its industry. As a result, the CPTC Loans are categorized as Level 3. See Note 14, "Proton Solutions Loans and Investments," for further information.
The Company's equity investments and notes receivables in privately-held companies were $56.4 million and $64.2 million at July 3, 2020 and September 27, 2019, respectively. The Company measures these investments at cost, and these investments are adjusted through net earnings when they are deemed to be impaired or when there is an adjustment from observable price changes. In both the three and nine months ended July 3, 2020, the fair value of the Company’s investments in its privately-held companies increased by $4.8 million, which is included in other income, net, in the Condensed Consolidated Statements of Earnings. In June 2020, one of the Company's equity investments completed an initial public offering ("IPO"). The Company’s equity investment in this public company is subject to a 180-day lock-up period from the effective date of the IPO. At July 3, 2020, the Company's carrying value of its equity investment in this public company was $47.0 million, which is recorded in prepaid and other current assets on the Company's Condensed Consolidated Balance Sheets, because the Company intends to sell the investment once the 180-day lock-up period is complete. This equity investment was transferred from Level 3 into Level 2 because the fair value can be determined using observable market data but due to the 180-day lock-up period, the market is considered inactive. During the three months ended July 3, 2020, the fair value of this investment increased by $20.9 million, which is included in other income, net, in the Condensed Consolidated Statements of Earnings.
The fair value of the outstanding long-term notes receivable, including accrued interest, approximated their carrying value of $35.8 million and $33.6 million at July 3, 2020 and September 27, 2019, respectively, because they are based on terms of recent comparable transactions and are categorized as Level 3. The fair value is based on the income approach by using the discounted cash flow model with key assumptions that include discount rates corresponding to the terms and risks as well as underlying cash flow assumptions. See Note 14, "Proton Solutions Loans and Investments," for information on the long-term notes receivable.