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Fair Value Measurements (Tables)

12 Months Ended

Sep. 30, 2017

Fair Value Disclosures [Abstract]

Fair Value Measurement on Company's Assets and Liabilities

The following tables present the Company’s assets and liabilities measured at fair value on a recurring basis as of September 30, 2017 and 2016:

		As of September 30, 2017
		Level 1				Level 2				Level 3				Total
Available-for-sale securities:
Corporate bonds		$	—			$	98,385			$	—			$	98,385
U.S. government treasuries			84,363				—				—				84,363
U.S. agency securities			—				60,646				—				60,646
Money market funds			52,504				—				—				52,504
Asset backed obligations			—				47,074				—				47,074
Commercial paper and certificates of deposit			—				33,448				—				33,448
Supranational and sovereign debt			—				8,777				—				8,777
Total available-for-sale securities			136,867				248,330				—				385,197
Derivative financial instruments, net			—				27,352				—				27,352
Other liabilities			—				—				(21,972	)			(21,972	)
Total		$	136,867			$	275,682			$	(21,972	)		$	390,577

		As of September 30, 2016
		Level 1				Level 2				Level 3				Total
Available-for-sale securities:
Corporate bonds		$	—			$	96,154			$	—			$	96,154
U.S. government treasuries			105,513				—				—				105,513
U.S. agency securities			—				48,393				—				48,393
Money market funds			449,288				—				—				449,288
Asset backed obligations			—				30,194				—				30,194
Commercial paper and certificates of deposit			—				42,498				—				42,498
Supranational and sovereign debt			—				8,342				—				8,342
Total available-for-sale securities			554,801				225,581				—				780,382
Derivative financial instruments, net			—				16,067				—				16,067
Other liabilities			—				—				(24,597	)			(24,597	)
Total		$	554,801			$	241,648			$	(24,597	)		$	771,852

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- References

No definition available.

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- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258

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