Condensed Consolidating Balance Sheet (Detail) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009	Dec. 31, 2008
Current assets:
Cash and cash equivalents	$ 101,971	$ 245,935	$ 129,846	$ 126,556
Accounts receivable, net	448,320	459,952
Inventories	41,120	41,987
Prepaid expenses and other (including intercompany)	37,655	38,657
Total current assets	629,066	786,531
Property, plant and equipment, net	148,905	175,567
Goodwill	636,471	636,471
Other intangible assets, net	213,613	233,817
Investments	3,490	3,146
Other assets	12,902	10,126
Total assets	1,644,447	1,845,658
Current liabilities:
Current portion, long-term debt	15,000	7,058
Accounts payable and intercompany payable	334,378	329,602
Progress billings	39,975	53,001
Accrued expenses	98,409	99,612
Total current liabilities	487,762	489,273
Long-term debt	587,560	699,169
Deferred income taxes	67,404	78,764
Other non-current liabilities	52,187	49,568
Total liabilities	1,194,913	1,316,774
Stockholders' equity	449,534	528,884	97,861	5,414
Total liabilities and stockholders' equity	1,644,447	1,845,658
Parent Company
Current assets:
Cash and cash equivalents	68,887	211,933	104,477	102,441
Accounts receivable, net	123,558	175,115
Inventories	32,159	33,305
Prepaid expenses and other (including intercompany)	1,157,263	278,489
Total current assets	1,381,867	698,842
Property, plant and equipment, net	24,790	31,475
Goodwill	23,584	23,584
Other intangible assets, net	11,558	19,161
Investments	547,366	400,404
Intercompany note receivable (payable)	359,649	479,365
Other assets	9,710	6,982
Total assets	2,358,524	1,659,813
Current liabilities:
Current portion, long-term debt	15,000	7,058
Accounts payable and intercompany payable	1,210,296	323,277
Progress billings	15,952	26,353
Accrued expenses	52,675	51,035
Total current liabilities	1,293,923	407,723
Long-term debt	587,560	699,169
Deferred income taxes	(2,840)	(4,044)
Other non-current liabilities	30,347	28,081
Total liabilities	1,908,990	1,130,929
Stockholders' equity	449,534	528,884
Total liabilities and stockholders' equity	2,358,524	1,659,813
Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	7,543	8,026	7,614	5,937
Accounts receivable, net	302,096	259,001
Inventories	8,958	8,679
Prepaid expenses and other (including intercompany)	1,993,450	630,972
Total current assets	2,312,047	906,678
Property, plant and equipment, net	122,565	142,006
Goodwill	605,898	605,898
Other intangible assets, net	202,055	214,656
Investments	21,385	12,486
Intercompany note receivable (payable)	(333,683)	(460,369)
Other assets	5,271	3,130
Total assets	2,935,538	1,424,485
Current liabilities:
Accounts payable and intercompany payable	2,246,381	866,614
Progress billings	10,358	11,751
Accrued expenses	38,543	41,300
Total current liabilities	2,295,282	919,665
Deferred income taxes	74,241	86,804
Other non-current liabilities	20,887	19,575
Total liabilities	2,390,410	1,026,044
Stockholders' equity	545,128	398,441
Total liabilities and stockholders' equity	2,935,538	1,424,485
Non-Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	25,541	25,976	17,755	18,178
Accounts receivable, net	22,666	25,836
Inventories	3	3
Prepaid expenses and other (including intercompany)	23,217	2,083
Total current assets	71,427	53,898
Property, plant and equipment, net	1,550	2,086
Goodwill	6,989	6,989
Intercompany note receivable (payable)	(25,966)	(18,996)
Other assets	(2,079)	14
Total assets	51,921	43,991
Current liabilities:
Accounts payable and intercompany payable	13,976	12,598
Progress billings	13,665	14,897
Accrued expenses	7,191	7,277
Total current liabilities	34,832	34,772
Deferred income taxes	(3,997)	(3,996)
Other non-current liabilities	953	1,912
Total liabilities	31,788	32,688
Stockholders' equity	20,133	11,303
Total liabilities and stockholders' equity	51,921	43,991
Consolidating Adjustments
Current assets:
Prepaid expenses and other (including intercompany)	(3,136,275)	(872,887)
Total current assets	(3,136,275)	(872,887)
Investments	(565,261)	(409,744)
Total assets	(3,701,536)	(1,282,631)
Current liabilities:
Accounts payable and intercompany payable	(3,136,275)	(872,887)
Total current liabilities	(3,136,275)	(872,887)
Total liabilities	(3,136,275)	(872,887)
Stockholders' equity	(565,261)	(409,744)
Total liabilities and stockholders' equity	$ (3,701,536)	$ (1,282,631)