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Fair Value Measurements (Tables)

3 Months Ended

Mar. 31, 2018

Fair Value Measurements

Schedule of assets measured at fair value on a recurring basis

Assets measured at fair value on a recurring basis are summarized below (in thousands):

		Fair Value Measurements as of March 31, 2018
		Total			Level 1			Level 2			Level 3
Marketable Securities
Bonds and bond funds		$	225,199		$	—		$	225,199		$	—
Commercial paper			158,638			—			158,638			—
Trading Securities			10,243			10,243			—			—
		$	394,080		$	10,243		$	383,837		$	—
Cash, Cash Equivalents			251,447			251,447			—			—
Total Assets Measured at Fair Value		$	645,527		$	261,690		$	383,837		$	—

		Fair Value Measurements as of December 31, 2017
		Total			Level 1			Level 2			Level 3
Marketable Securities
Bonds and bond funds		$	344,251		$	—		$	344,251		$	—
Commercial paper			159,252			—			159,252			—
		$	503,503		$	—		$	503,503		$	—
Cash, Cash Equivalents			181,792			181,792			—			—
Total Assets Measured at Fair Value		$	685,295		$	181,792		$	503,503		$	—

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- Definition

Tabular disclosure of assets, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, by class 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 2
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

Reference 2: 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

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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X

- References

No definition available.

+ Details

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