CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (UNAUDITED) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2012	Mar. 31, 2011
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (UNAUDITED) [Abstract]
Revenues	$ 912,534	$ 615,289
Cost of Operations	826,375	552,826
Gross Profit	86,159	62,463
General and Administrative Expenses	69,196	43,950
INCOME FROM CONSTRUCTION OPERATIONS	16,963	18,513
Other Income (Expense), Net	(2,308)	(447)
Interest Expense	(11,082)	(7,155)
Income before Income Taxes	3,573	10,911
Provision for Income Taxes	(4,776)	(3,982)
NET (LOSS) INCOME	$ (1,203)	$ 6,929
BASIC (LOSS) EARNINGS PER COMMON SHARE (in dollars per share)	$ (0.03)	$ 0.15
DILUTED (LOSS) EARNINGS PER COMMON SHARE (in dollars per share)	$ (0.03)	$ 0.14
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	47,330	47,100
Effect of Dilutive Stock Options and Restricted Stock Units Outstanding (in shares)	0	762
DILUTED (in shares)	47,330	47,862