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Fair Value Measurements (Tables)
6 Months Ended
Jun. 30, 2012
Fair Value Measurements  
Schedule of assets measured at fair value on a recurring basis

 

Fair Value Measurements as of June 30, 2012

 

 

 

Total

 

Level 1

 

Level 2

 

Level 3

 

 

 

 

 

 

 

 

 

 

 

Marketable Securities

 

 

 

 

 

 

 

 

 

Bond and bond fund

 

$

497,410

 

$

 

$

497,410

 

$

 

Commercial paper

 

3,543

 

 

3,543

 

 

Asset backed securities

 

379

 

 

379

 

 

 

 

501,332

 

 

501,332

 

 

 

 

 

 

 

 

 

 

 

 

Cash, Cash Equivalents and Restricted Cash

 

128,159

 

128,159

 

 

 

Other Assets (a)

 

3,825

 

 

 

3,825

 

Total Assets Measured at Fair Value

 

$

633,316

 

$

128,159

 

$

501,332

 

$

3,825

 

 

(a)          Auction rate securities included in “Other assets” in the unaudited Consolidated Balance Sheet

Schedule of fair value measurements using significant unobservable inputs

 

 

Fair Value Measurements Using Significant Unobservable Inputs

(Level 3)

 

 

 

Auction Rate
Securities

 

Balance at January 1, 2012

 

$

3,793

 

Total realized and unrealized gains or (losses)

 

 

 

Included in earnings

 

 

Included in other comprehensive income

 

32

 

Transferred out

 

 

Settlements

 

 

Balance at June 30, 2012

 

$

3,825