Consolidated Balance Sheets (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
Current assets
Cash and cash equivalents	$ 108,004	$ 114,829
Restricted cash	145	745
Receivables, net	183,354	178,994
Retainage	29,973	28,726
Costs and estimated earnings in excess of billings	74,645	69,544
Inventories	44,376	42,524
Prepaid expenses and other assets	32,378	30,031
Current assets of discontinued operations		1,193
Total current assets	472,875	466,586
Property, plant and equipment, less accumulated depreciation	169,985	164,486
Other assets
Goodwill	207,808	190,120
Identified intangible assets, less accumulated amortization	100,829	73,147
Investments in affiliated companies	25,757	27,989
Deferred income tax assets	4,394	4,115
Other assets	5,460	4,260
Total other assets	344,248	299,631
Non-current assets of discontinued operations		2,607
Total Assets	987,108	933,310
Current liabilities
Accounts payable	69,570	74,820
Other accrued expenses	69,795	73,035
Billings in excess of costs and estimated earnings	11,426	12,612
Current maturities of long-term debt, line of credit and notes payable	11,487	13,028
Total current liabilities	162,278	173,495
Long-term debt, less current maturities	111,865	91,715
Deferred income tax liabilities	40,793	32,330
Other non-current liabilities	22,875	9,063
Total liabilities	337,811	306,603
Stockholders’ equity
Preferred stock, undesignated, $.10 par – shares authorized 2,000,000; none outstanding	0	0
Common stock, $.01 par – shares authorized 125,000,000; shares issued and outstanding 39,470,070 and 39,246,015	395	392
Additional paid-in capital	258,888	251,578
Retained earnings	357,884	347,249
Accumulated other comprehensive income	23,523	18,113
Total stockholders’ equity before noncontrolling interests	640,690	617,332
Noncontrolling interests	8,607	9,375
Total equity	649,297	626,707
Total Liabilities and Equity	$ 987,108	$ 933,310