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Accounts Receivable
 12 Months Ended
Dec. 31, 2012
Accounts Receivable  
Accounts Receivable

Note 5—Accounts Receivable

 

The following is a summary of accounts receivable at December 31:

 

 

 

2012

 

2011

 

Contracts receivable, net of allowance for doubtful accounts of $432 and $363 for 2012 and 2011, respectively

 

$

227,548

 

$

166,298

 

Retention

 

39,710

 

20,378

 

 

 

267,258

 

186,676

 

Due from affiliates

 

—

 

—

 

Other accounts receivable

 

837

 

702

 

 

 

$

268,095

 

$

187,378

 

 

Amounts “due from affiliates” primarily relate to amounts due from related parties (See Note 8 “Equity Method Investments” and Note 20 “Related Party Transactions”) for the performance of construction contracts.  At December 31, 2012 and 2011, there were no amounts due from affiliates.  Contract revenues earned from related parties were approximately $502, $5,681 and $1,568 for the years ended December 31, 2012, 2011 and 2010, respectively.