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



	August 31, 2014
($ in thousands)	Amortized Cost		Unrealized Gains		Unrealized Losses			Fair Value		Cash and Cash Equivalents⁽¹⁾		Current Marketable Securities⁽²⁾		Noncurrent Marketable Securities⁽²⁾
Cash	$	1,295,395	$	—	$	—		$	1,295,395	$	1,295,395	$	—	$	—
Level 1:
Money market funds	132,508		—		—			132,508		132,508		—		—
Level 2:
Tax-exempt municipal bonds	106,543		155		(11		)	106,687		—		78,443		28,244
Corporate bonds	106,575		123		(52		)	106,646		—		56,837		49,809
Time deposits	50,100		—		—			50,100		25,041		25,059		—
Commercial paper	11,793		1		—			11,794		—		11,794		—
Other	19,155		1		(1		)	19,155		4		15,339		3,812
Level 3:
Auction-rate securities	5,946		—		—			5,946		—		—		5,946
Total	$	1,728,015	$	280	$	(64	)	$	1,728,231	$	1,452,948	$	187,472	$	87,811



	August 31, 2013
($ in thousands)	Cash and Cash Equivalents⁽¹⁾		Current Marketable Securities⁽²⁾		Noncurrent Marketable Securities⁽²⁾		Total Carrying Value		Unrealized Gains		Unrealized Losses			Fair Value
Cash	$	874,074	$	—	$	—	$	874,074	$	—	$	—		$	874,074
Level 1:
Money market funds	732,530		—		—		732,530		—		—			732,530
Level 2:
Tax-exempt municipal bonds	2,055		69,621		24,070		95,746		19		(54		)	95,711
Certificates of deposit	65,000		1,200		—		66,200		—		—			66,200
Corporate bonds	—		24,503		13,925		38,428		6		(40		)	38,394
Commercial paper	—		9,828		—		9,828		—		—			9,828
Other	—		657		—		657		—		—			657
Level 3:
Auction-rate securities	—		—		5,946		5,946
Total	$	1,673,659	$	105,809	$	43,941	$	1,823,409

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

⁽²⁾ As described above, we changed the designation of our marketable securities to available-for-sale as of August 31, 2014 and they are reported at fair value. Our held-to-maturity securities at August 31, 2013 are recorded at amortized cost.