XML 70 R41.htm IDEA: XBRL DOCUMENT v2.4.0.8
Accounts Receivable (Details) (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Accounts Receivable    
Contracts receivable, net of allowance for doubtful accounts $ 261,736 $ 257,354
Retention receivable 48,978 47,054
Contracts receivable and retention 310,714 304,408
Other accounts receivable 607 547
Accounts receivable, net 311,321 304,955
Allowance for doubtful accounts $ 615 $ 692