Cash and Cash Equivalents, and Investments (Tables)

3 Months Ended

Mar. 31, 2020

Cash and Cash Equivalents [Abstract]

Cash, Cash Equivalents and Investments

The following tables show our cash and cash equivalents, and investments’ adjusted cost, unrealized gain, unrealized loss and fair value as of March 31, 2020 and December 31, 2019 (in thousands):

	March 31, 2020
	Adjusted Cost		Unrealized Gain		Unrealized Loss			Fair Value
Cash and cash equivalents:
Cash	$	198,755	$	—	$	—		$	198,755
Money market funds	160,346		—		—			160,346
Total cash and cash equivalents	$	359,101	$	—	$	—		$	359,101
Short-term investments:
Corporate securities	$	359,108	$	149	$	(1,338	)	$	357,919
U.S. treasury securities	31,729		127		—			31,856
Agency bonds	14,999		20		—			15,019
Total short-term investments	$	405,836	$	296	$	(1,338	)	$	404,794
Long-term investments:
Corporate securities	$	256,074	$	215	$	(1,703	)	$	254,586
Agency bonds	18,496		32		—			18,528
Total long-term investments	$	274,570	$	247	$	(1,703	)	$	273,114

	December 31, 2019
	Adjusted Cost		Unrealized Gain		Unrealized Loss			Fair Value
Cash and cash equivalents:
Cash	$	241,355	$	—	$	—		$	241,355
Money market funds	146,165		—		—			146,165
Total cash and cash equivalents	$	387,520	$	—	$	—		$	387,520
Short-term investments:
Commercial paper	$	7,489	$	—	$	—		$	7,489
Corporate securities	318,946		425		(78		)	319,293
U.S. treasury securities	44,251		39		(4		)	44,286
Agency bonds	10,000		6		—			10,006
Total short-term investments	$	380,686	$	470	$	(82	)	$	381,074
Long-term investments:
Corporate securities	$	295,103	$	533	$	(158	)	$	295,478
Agency bonds	14,999		6		—			15,005
Total long-term investments	$	310,102	$	539	$	(158	)	$	310,483

Schedule of Available-for-sale Securities Reconciliation

The following table shows our cash equivalents and investments' adjusted cost and fair value by contractual maturity as of March 31, 2020 (in thousands):

	Adjusted Cost		Fair Value
Due in 1 year or less	$	405,836	$	404,794
Due in 1-2 years	274,570		273,114
Investments not due at a single maturity date	160,346		160,346
Total	$	840,752	$	838,254