Consolidated Balance Sheets (Unaudited) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012		Dec. 31, 2011
Assets
Cash and cash equivalents	$ 130,450		$ 106,129
Restricted cash	759		82
Receivables, net	209,213		228,313
Retainage	36,518		33,933
Costs and estimated earnings in excess of billings	77,672		67,683
Inventories	55,566		54,540
Prepaid expenses and other current assets	26,042		27,305
Total current assets	536,220		517,985
Property, plant & equipment, less accumulated depreciation	170,740		168,945
Goodwill	251,275	[1]	249,888	[1]
Identified intangible assets, less accumulated amortization	148,761		149,655
Investments	27,508		26,680
Deferred income tax assets	5,612		5,418
Other assets	5,478		6,393
Total other assets	438,634		438,034
Total Assets	1,145,594		1,124,964
Liabilities and Equity
Accounts payable	72,874		72,326
Accrued expenses	61,322		69,417
Billings in excess of costs and estimated earnings	20,443		24,435
Current maturities of long-term debt and line of credit	25,987		26,541
Total current liabilities	180,626		192,719
Long-term debt, less current maturities	243,697		222,868
Deferred income tax liabilities	39,262		38,167
Other non-current liabilities	22,472		22,221
Total liabilities	486,057		475,975
Common stock, $.01 par – shares authorized 125,000,000; shares issued and outstanding 39,261,072 and 39,352,375, respectively	393		394
Additional paid‑in capital	256,858		260,680
Retained earnings	380,520		373,796
Accumulated other comprehensive income	8,827		5,862
Total stockholders' equity	646,598		640,732
Non-controlling interests	12,939		8,257
Total equity	659,537		648,989
Total Liabilities and Equity	$ 1,145,594		$ 1,124,964

[1] The Company does not have any accumulated impairment charges.