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Fair Value Measurement (Tables)

3 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Summary of Marketable Securities Measured at Fair Value on Recurring Basis

The following table summarizes the Company’s marketable securities at March 31, 2016 and December 31, 2015 measured at fair value on a recurring basis (in thousands):

		March 31, 2016												December 31, 2015
		Cost				Gross Unrealized Gains (Losses)				Recorded Basis				Cost				Gross Unrealized Gains (Losses)				Recorded Basis
Current:
Cash Equivalents:
Money Market Funds		$	38,056			$	0			$	38,056			$	21,312			$	0			$	21,312
Available for Sale - Restricted:
Money Market Funds			40,049				0				40,049				76,023				0				76,023
Certificate of Deposit			0				0				0				10,000				0				10,000
Total Current Investments			78,105				0				78,105				107,335				0				107,335
Long term:
Available-for-sale:
Money Market Funds			78				0				78				4				0				4
Corporate Bonds			3,070				(9	)			3,061				2,970				(24	)			2,946
Municipal Bonds			3,064				11				3,075				3,135				(3	)			3,132
Available for Sale - Restricted:
Money Market Funds			180,253				0				180,253				175,869				0				175,869
Certificate of Deposit			11,776				(2	)			11,774				496				(1	)			495
U.S. Treasuries			6,148				14				6,162				4,752				1				4,753
Municipal Bonds			3,421				11				3,432				3,613				(1	)			3,612
Corporate Bonds			3,217				(10	)			3,207				2,996				(24	)			2,972
Total Long Term Investments			211,027				15				211,042				193,835				(52	)			193,783
Total Investments		$	289,132			$	15			$	289,147			$	301,170			$	(52	)		$	301,118

Summary of Assets Measured at Fair Value on Recurring Basis

The following table summarizes the Company’s financial assets measured at fair value on a recurring basis by fair value hierarchy level (in thousands):

		March 31, 2016																December 31, 2015
		Total Recorded Basis				Level 1				Level 2				Level 3				Total Recorded Basis				Level 1				Level 2				Level 3
Cash Equivalents:
Money Market		$	38,056			$	0			$	38,056			$	0			$	21,312			$	0			$	21,312			$	0
Available for Sale - Unrestricted:
Money Market Funds			78				0				78				0				4				0				4				0
Corporate Bonds			3,061				2,253				808				0				2,946				2,291				655				0
Municipal Bonds			3,075				163				2,912				0				3,132				241				2,891				0
Available for Sale - Restricted:
Money Market			220,302				17				220,285				0				251,892				17				251,875				0
Certificate of Deposit			11,774				0				11,774				0				10,495				0				10,495				0
U.S. Treasuries			6,162				6,162				0				0				4,753				4,753				0				0
Municipal Bonds			3,432				266				3,166				0				3,612				389				3,223				0
Corporate Bonds			3,207				2,245				962				0				2,972				2,285				687				0
Total Available for Sale Securities			251,091				11,106				239,985				0				279,806				9,976				269,830				0
Total Investments		$	289,147			$	11,106			$	278,041			$	0			$	301,118			$	9,976			$	291,142			$	0

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- References

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Tabular disclosure of marketable securities. This may consist of investments in certain debt and equity securities, short-term investments and other assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26626-111562

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03.4)
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27232-111563

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=66010992&loc=d3e26610-111562

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=73527792&loc=d3e27161-111563

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.2,12)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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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