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Fair Value Measurement (Tables)

6 Months Ended

Jun. 30, 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 June 30, 2016 and December 31, 2015 measured at fair value on a recurring basis (in thousands):

		June 30, 2016												December 31, 2015
		Cost				Gross Unrealized Gains (Losses)				Recorded Basis				Cost				Gross Unrealized Gains (Losses)				Recorded Basis
Current:
Cash Equivalents:
Money Market Funds		$	4,830			$	0			$	4,830			$	21,312			$	0			$	21,312
Available for Sale - Restricted:
Money Market Funds			48,371				0				48,371				76,023				0				76,023
Certificate of Deposit			0				0				0				10,000				0				10,000
Total Current Investments			53,201				0				53,201				107,335				0				107,335
Long term:
Available-for-sale:
Municipal Bonds			1,500				1				1,501				3,135				(3	)			3,132
Corporate Bonds			863				(2	)			861				2,970				(24	)			2,946
Money Market Funds			94				0				94				4				0				4
Available for Sale - Restricted:
Money Market Funds			221,728				0				221,728				175,869				0				175,869
Certificates of Deposit			11,776				(1	)			11,775				496				(1	)			495
U.S. Treasuries			5,280				17				5,297				4,752				1				4,753
Corporate Bonds			3,217				8				3,225				2,996				(24	)			2,972
Municipal Bonds			3,160				12				3,172				3,613				(1	)			3,612
Total Long Term Investments			247,618				35				247,653				193,835				(52	)			193,783
Total Investments		$	300,819			$	35			$	300,854			$	301,170			$	(52	)		$	301,118

Summary of Assets Measured at Fair Value on Recurring Basis

The following table summarizes the Company’s financial assets at June 30, 2016 and December 31, 2015 measured at fair value on a recurring basis by fair value hierarchy level (in thousands):

		June 30, 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		$	4,830			$	0			$	4,830			$	0			$	21,312			$	0			$	21,312			$	0
Available for Sale - Unrestricted:
Municipal Bonds			1,501				50				1,451				0				3,132				241				2,891				0
Corporate Bonds			861				401				460				0				2,946				2,291				655				0
Money Market Funds			94				0				94				0				4				0				4				0
Available for Sale - Restricted:
Money Market			270,099				888				269,211				0				251,892				17				251,875				0
Certificates of Deposit			11,775				0				11,775				0				10,495				0				10,495				0
U.S. Treasuries			5,297				5,297				0				0				4,753				4,753				0				0
Corporate Bonds			3,225				2,174				1,051				0				2,972				2,285				687				0
Municipal Bonds			3,172				213				2,959				0				3,612				389				3,223				0
Total Available for Sale Securities			296,024				9,023				287,001				0				279,806				9,976				269,830				0
Total Investments		$	300,854			$	9,023			$	291,831			$	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
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-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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