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Fair-Value Measurements
9 Months Ended
Sep. 30, 2012
Fair Value Disclosures [Abstract]  
Fair-Value Measurements
Fair-Value Measurements

Assets and liabilities reported at fair value are classified in one of the following three levels within the fair-value hierarchy:

Level 1: Quoted market prices in active markets for identical assets or liabilities
Level 2: Observable market-based inputs or unobservable inputs that are corroborated by market data
Level 3: Unobservable inputs that are not corroborated by market data

Financial Assets Measured at Fair Value on a Recurring Basis

The following table summarizes the valuation of financial instruments within the fair-value hierarchy:

 
September 30, 2012
(Dollars in thousands)
Total
 
Level 1
 
Level 2
 
Level 3
Cash equivalents
$
398,496

 
$
84,082

 
$
314,414

 
$

Current marketable securities
3,200

 

 
3,200

 

 
December 31, 2011
(Dollars in thousands)
Total
 
Level 1
 
Level 2
 
Level 3
Cash equivalents
$
398,450

 
$
84,872

 
$
313,578

 
$

Current marketable securities
13,255

 

 
13,255

 

Other marketable securities
5,354

 

 

 
5,354



Cash equivalents consist of short-term interest-bearing instruments (primarily commercial paper, certificates of deposit and money-market funds) with maturities of three months or less at the date of purchase. Current marketable securities consist of variable-rate demand notes.

Money-market funds reflect their published net asset value and are classified as Level 1 instruments. Commercial paper, certificates of deposit and variable-rate demand notes are generally valued using published interest rates for instruments with similar terms and maturities, and accordingly, are classified as Level 2 instruments. At September 30, 2012, the weighted-average remaining maturity of the cash equivalents was less than one month. Based on their short maturities, the carrying amount of the cash equivalents approximates their fair value.

Level 3 investments consisted of one auction-rate security at December 31, 2010 and December 31, 2011, which was valued with an income approach that utilized a discounted cash flow model. This investment was sold during the three months ended September 30, 2012. The following table summarizes the change in fair value of Con-way’s auction-rate security, which was valued using Level 3 inputs:
(Dollars in thousands)
Auction-rate security
Balance at December 31, 2010
$
6,039

Loss included in other comprehensive income
(10
)
Settlements
(675
)
Balance at December 31, 2011
$
5,354

Gains (Losses)
 
Included in earnings
(367
)
Included in other comprehensive income
371

Settlements and Sales
 
Settlements
(75
)
Sales
(5,283
)
Balance at September 30, 2012
$