Receivables, Net (Tables)

3 Months Ended

Mar. 31, 2016

Receivables [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block]

(in thousands)	March 31, 2016		December 31, 2015		March 31, 2015
Construction contracts:
Completed and in progress	$	178,974	$	206,756	$	163,671
Retentions	93,495		91,670		74,718
Total construction contracts	272,469		298,426		238,389
Construction Material sales	23,392		28,727		26,776
Other	11,940		14,033		6,504
Total gross receivables	307,801		341,186		271,669
Less: allowance for doubtful accounts	318		364		341
Total net receivables	$	307,483	$	340,822	$	271,328

Schedule Of Escrow and Non Escrow Retention Receivable [Table Text Block]

We segregate our retention receivables into two categories: escrow and non-escrow. The balances in each category were as follows:

(in thousands)	March 31, 2016		December 31, 2015		March 31, 2015
Escrow	$	21,015	$	21,958	$	22,421
Non-escrow	72,480		69,712		52,297
Total retention receivables	$	93,495	$	91,670	$	74,718