The following summarizes our cash and cash equivalents, restricted cash and cash equivalents and marketable securities by financial instrument category as of the respective period ends:



	May 31, 2016
($ in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value		Cash and Cash Equivalents⁽¹⁾		Current Marketable Securities		Noncurrent Marketable Securities
Cash	$	408,823	$	—	$	—		$	408,823	$	408,823	$	—	$	—
Level 1:
Money market funds	111,236		—		—			111,236		111,236		—		—
Level 2:
Corporate bonds	113,004		30		(155		)	112,879		—		96,531		16,348
Tax-exempt municipal bonds	104,281		33		(43		)	104,271		600		84,324		19,347
Time deposits	50,458		—		—			50,458		25,187		25,271		—
Other	40,797		12		(6		)	40,803		1,000		36,175		3,628
Total	$	828,599	$	75	$	(204	)	$	828,470	$	546,846	$	242,301	$	39,323



	August 31, 2015
($ in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value		Cash and Cash Equivalents⁽¹⁾		Current Marketable Securities		Noncurrent Marketable Securities
Cash	$	564,225	$	—	$	—		$	564,225	$	564,225	$	—	$	—
Level 1:
Money market funds	107,408		—		—			107,408		107,408		—		—
Level 2:
Corporate bonds	137,283		16		(271		)	137,028		1,823		82,047		53,158
Tax-exempt municipal bonds	97,022		68		(60		)	97,030		2,408		61,530		33,092
Time deposits	50,267		—		—			50,267		25,110		25,157		—
Other	36,634		10		(37		)	36,607		1,100		25,942		9,565
Total	$	992,839	$	94	$	(368	)	$	992,565	$	702,074	$	194,676	$	95,815

⁽¹⁾ Cash and cash equivalents includes restricted cash and cash equivalents.