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Fair Value Measurements (Tables)
9 Months Ended
Sep. 30, 2016
Fair Value Disclosures [Abstract]  
Fair Values of Financial Assets Measured on Recurring Basis

The fair values of our financial assets that are measured on a recurring basis are as follows (in thousands):

 

 

 

September 30, 2016

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Corporate bonds

 

$

 

 

$

118,831

 

 

$

 

 

$

118,831

 

Bond and mutual funds

 

 

23,201

 

 

 

 

 

 

 

 

 

23,201

 

Equity investments

 

 

220

 

 

 

 

 

 

 

 

 

220

 

Money market funds

 

 

105,663

 

 

 

 

 

 

 

 

 

105,663

 

Total

 

$

129,084

 

 

$

118,831

 

 

$

 

 

$

247,915

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31, 2015

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Corporate bonds

 

$

 

 

$

126,103

 

 

$

 

 

$

126,103

 

Bond and mutual funds

 

 

25,052

 

 

 

 

 

 

 

 

 

25,052

 

Equity investments

 

 

197

 

 

 

 

 

 

 

 

 

197

 

Money market funds

 

 

77,639

 

 

 

 

 

 

 

 

 

77,639

 

Certificate of deposits

 

 

 

 

 

8,215

 

 

 

 

 

 

8,215

 

Total

 

$

102,888

 

 

$

134,318

 

 

$

 

 

$

237,206

 

 

Fair Values of Financial Liabilities Carried at Historical Cost

The fair values of our financial liabilities that are carried at historical cost are as follows (in thousands): 

 

 

 

September 30, 2016

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Lease financing obligations

 

$

 

 

$

 

 

$

97,833

 

 

$

97,833

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

December 31, 2015

 

 

 

Level 1

 

 

Level 2

 

 

Level 3

 

 

Total

 

Lease financing obligations

 

$

 

 

$

 

 

$

97,445

 

 

$

97,445