Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
CURRENT ASSETS:
Cash, including cash equivalents of $19,197 and $127,879	$ 204,240	$ 471,378
Restricted cash	35,437	23,550
Accounts receivable, including retainage of $358,511 and $271,778	1,275,031	880,614
Costs and estimated earnings in excess of billings	358,398	139,449
Deferred tax asset	0	3,737
Other current assets	76,928	42,314
Total current assets	1,950,034	1,561,042
LONG-TERM INVESTMENTS	62,311	88,129
PROPERTY AND EQUIPMENT, at cost:
Land	40,813	36,048
Buildings and improvements	104,792	89,281
Construction equipment	325,735	205,038
Other equipment	124,578	112,012
Property and Equipment, gross	595,918	442,379
Less - Accumulated depreciation	104,541	79,942
Total property and equipment, net	491,377	362,437
GOODWILL	892,602	621,920
INTANGIBLE ASSETS, NET	197,999	132,551
OTHER ASSETS	18,804	13,141
Total Assets	3,613,127	2,779,220
CURRENT LIABILITIES:
Current maturities of long-term debt	59,959	21,334
Accounts payable, including retainage of $151,907 and $280,867	785,725	653,542
Billings in excess of costs and estimated earnings	384,282	199,750
Accrued expenses and other current liabilities	163,268	93,488
Total current liabilities	1,393,234	968,114
LONG-TERM DEBT, less current maturities included above	612,548	374,350
DEFERRED INCOME TAXES	97,921	79,082
OTHER LONG-TERM LIABILITIES	109,597	44,680
CONTINGENCIES AND COMMITMENTS (Note 9)
STOCKHOLDERS' EQUITY:
Common stock, $1 par value: Authorized - 75,000,000 shares Issued and outstanding - 47,329,275 shares and 47,089,593 shares	47,329	47,090
Additional paid-in capital	993,434	985,413
Retained earnings	402,679	316,531
Accumulated other comprehensive loss	(43,615)	(36,040)
Total stockholders' equity	1,399,827	1,312,994
Total Liabilities and Stockholders' Equity	$ 3,613,127	$ 2,779,220