Inventories (Tables)

6 Months Ended

Jun. 30, 2015

Inventory Disclosure [Abstract]

Inventories

Inventories in the accompanying Condensed Consolidated Balance Sheets consisted of the following amounts (in thousands):

	June 30, 2015		December 31, 2014
Raw materials and construction materials	$	31,604	$	23,330
Work in process	33,519		23,524
	$	65,123	$	46,854