CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013
CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS
Revenues	$ 955,233	$ 992,928
Cost of operations	849,886	892,571
Gross profit	105,347	100,357
General and administrative expenses	63,850	64,278
INCOME FROM CONSTRUCTION OPERATIONS	41,497	36,079
Other (expense) income, net	(3,373)	(827)
Interest expense	(10,831)	(11,336)
Income before income taxes	27,293	23,916
Provision for income taxes	(11,354)	(9,116)
NET INCOME	$ 15,939	$ 14,800
BASIC EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.33	$ 0.31
DILUTED EARNINGS PER COMMON SHARE (in dollars per share)	$ 0.33	$ 0.31
WEIGHTED AVERAGE COMMON SHARES OUTSTANDING:
BASIC (in shares)	48,440	47,559
Effect of dilutive stock options and restricted stock units (in shares)	490	954
DILUTED (in shares)	48,930	48,513