8. Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2020

Fair Value Disclosures [Abstract]

Fair value of assets and liabilities measured on a recurring basis

At March 31, 2020 and December 31, 2019, the fair value measurements of our assets and liabilities measured on a recurring basis were as follows (in thousands):

			Fair Value Measurements at Reporting Date Using
	March 31, 2020		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents:
Money market funds	$	341	$	341	$	—	$	—
Marketable securities:
Foreign debt	292,569		—		292,569		—
U.S. debt	54,567		—		54,567		—
Time deposits	232,204		232,204		—		—
Restricted marketable securities	246,410		—		246,410		—
Derivative assets	3,592		—		3,592		—
Total assets	$	829,683	$	232,545	$	597,138	$	—
Liabilities:
Derivative liabilities	$	11,156	$	—	$	11,156	$	—

			Fair Value Measurements at Reporting Date Using
	December 31, 2019		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Assets:
Cash equivalents:
Money market funds	$	7,322	$	7,322	$	—	$	—
Marketable securities:
Foreign debt	387,820		—		387,820		—
Foreign government obligations	22,011		—		22,011		—
U.S. debt	66,134		—		66,134		—
Time deposits	335,541		335,541		—		—
Restricted marketable securities	223,785		—		223,785		—
Derivative assets	1,338		—		1,338		—
Total assets	$	1,043,951	$	342,863	$	701,088	$	—
Liabilities:
Derivative liabilities	$	10,021	$	—	$	10,021	$	—

Carrying value and fair value of financial instruments not measured at fair value

At March 31, 2020 and December 31, 2019, the carrying values and fair values of our financial instruments not measured at fair value were as follows (in thousands):

	March 31, 2020				December 31, 2019
	Carrying Value		Fair Value		Carrying Value		Fair Value
Assets:
Notes receivable – current (1)	$	—	$	—	$	23,873	$	24,929
Notes receivable – noncurrent (1)	8,071		8,699		8,194		10,276
Liabilities:
Long-term debt, including current maturities (2)	$	483,395	$	458,336	$	482,892	$	504,213

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(1)See Note 5. “Consolidated Balance Sheet Details” for further information about the allowance for credit losses for our notes receivable.

(2)Excludes unamortized discounts and issuance costs.