Condensed Consolidating Balance Sheets (Detail) (USD $) In Thousands	Sep. 30, 2011	Dec. 31, 2010	Sep. 30, 2010	Dec. 31, 2009
Current assets:
Cash and cash equivalents	$ 91,034	$ 245,935	$ 208,520	$ 129,846
Accounts receivable, net	407,286	459,952
Inventories	36,135	41,987
Prepaid expenses and other (including intercompany)	63,408	38,657
Total current assets	597,863	786,531
Property, plant and equipment, net	157,000	175,567
Goodwill	636,471	636,471
Other intangible assets, net	224,350	233,817
Investments	3,070	3,146
Other assets	13,694	10,126
Total assets	1,632,448	1,845,658
Current liabilities:
Current portion, long-term debt	15,000	7,058
Accounts payable and intercompany payable	295,112	329,602
Progress billings	52,608	53,001
Accrued expenses	93,591	99,612
Total current liabilities	456,311	489,273
Long-term debt	591,310	699,169
Deferred income taxes	78,258	78,764
Other non-current liabilities	39,738	49,568
Total liabilities	1,165,617	1,316,774
Stockholders' equity	466,831	528,884
Total liabilities and stockholders' equity	1,632,448	1,845,658
Parent Company
Current assets:
Cash and cash equivalents	65,249	211,933	184,470	104,477
Accounts receivable, net	107,605	175,115
Inventories	25,331	33,305
Prepaid expenses and other (including intercompany)	1,067,181	278,489
Total current assets	1,265,366	698,842
Property, plant and equipment, net	26,373	31,475
Goodwill	23,584	23,584
Other intangible assets, net	19,145	19,161
Investments	434,949	400,404
Intercompany note receivable (payable)	(92,419)	479,365
Other assets	10,225	6,982
Total assets	1,687,223	1,659,813
Current liabilities:
Current portion, long-term debt	15,000	7,058
Accounts payable and intercompany payable	523,939	323,277
Progress billings	25,354	26,353
Accrued expenses	50,793	51,035
Total current liabilities	615,086	407,723
Long-term debt	591,310	699,169
Deferred income taxes	(5,403)	(4,044)
Other non-current liabilities	19,399	28,081
Total liabilities	1,220,392	1,130,929
Stockholders' equity	466,831	528,884
Total liabilities and stockholders' equity	1,687,223	1,659,813
Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	1,759	8,026	1,921	7,614
Accounts receivable, net	274,747	259,001
Inventories	10,801	8,679
Prepaid expenses and other (including intercompany)	1,244,125	630,972
Total current assets	1,531,432	906,678
Property, plant and equipment, net	129,000	142,006
Goodwill	605,898	605,898
Other intangible assets, net	205,205	214,656
Investments	20,587	12,486
Intercompany note receivable (payable)	104,867	(460,369)
Other assets	(187)	3,130
Total assets	2,596,802	1,424,485
Current liabilities:
Accounts payable and intercompany payable	2,008,714	866,614
Progress billings	13,310	11,751
Accrued expenses	35,875	41,300
Total current liabilities	2,057,899	919,665
Deferred income taxes	87,657	86,804
Other non-current liabilities	18,320	19,575
Total liabilities	2,163,876	1,026,044
Stockholders' equity	432,926	398,441
Total liabilities and stockholders' equity	2,596,802	1,424,485
Non-Guarantor Subsidiaries
Current assets:
Cash and cash equivalents	24,026	25,976	22,129	17,755
Accounts receivable, net	24,934	25,836
Inventories	3	3
Prepaid expenses and other (including intercompany)	1,710	2,083
Total current assets	50,673	53,898
Property, plant and equipment, net	1,627	2,086
Goodwill	6,989	6,989
Intercompany note receivable (payable)	(12,448)	(18,996)
Other assets	3,656	14
Total assets	50,497	43,991
Current liabilities:
Accounts payable and intercompany payable	12,067	12,598
Progress billings	13,944	14,897
Accrued expenses	6,923	7,277
Total current liabilities	32,934	34,772
Deferred income taxes	(3,996)	(3,996)
Other non-current liabilities	2,019	1,912
Total liabilities	30,957	32,688
Stockholders' equity	19,540	11,303
Total liabilities and stockholders' equity	50,497	43,991
Consolidating Adjustments
Current assets:
Prepaid expenses and other (including intercompany)	(2,249,608)	(872,887)
Total current assets	(2,249,608)	(872,887)
Investments	(452,466)	(409,744)
Total assets	(2,702,074)	(1,282,631)
Current liabilities:
Accounts payable and intercompany payable	(2,249,608)	(872,887)
Total current liabilities	(2,249,608)	(872,887)
Total liabilities	(2,249,608)	(872,887)
Stockholders' equity	(452,466)	(409,744)
Total liabilities and stockholders' equity	$ (2,702,074)	$ (1,282,631)