Goodwill And Other Intangible Assets (Rollforward of Other Intangible Assets) (Detail) (USD $)	12 Months Ended			0 Months Ended	12 Months Ended				0 Months Ended	12 Months Ended						0 Months Ended		12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2013 Weighted Average [Member]	Dec. 31, 2013 Intangible Assets Excluding Goodwill [Member]	Dec. 31, 2013 Customer-Related Intangible Assets [Member]	Dec. 31, 2012 Customer-Related Intangible Assets [Member]	Dec. 31, 2011 Customer-Related Intangible Assets [Member]	Dec. 31, 2013 Customer-Related Intangible Assets [Member] Weighted Average [Member]	Dec. 31, 2013 Other Intangible Assets [Member]		Dec. 31, 2012 Other Intangible Assets [Member]		Dec. 31, 2011 Other Intangible Assets [Member]		Dec. 31, 2013 Other Intangible Assets [Member] Weighted Average [Member]		Dec. 31, 2013 Trade Names [Member]	Dec. 31, 2012 Trade Names [Member]	Dec. 31, 2013 Pre-Qualifications [Member]	Dec. 31, 2012 Pre-Qualifications [Member]	Dec. 31, 2013 Continuing Operations [Member]	Dec. 31, 2012 Continuing Operations [Member]	Dec. 31, 2011 Continuing Operations [Member]	Dec. 31, 2013 Continuing Operations [Member] Customer-Related Intangible Assets [Member]	Dec. 31, 2012 Continuing Operations [Member] Customer-Related Intangible Assets [Member]	Dec. 31, 2013 Continuing Operations [Member] Other Intangible Assets [Member]		Dec. 31, 2012 Continuing Operations [Member] Other Intangible Assets [Member]
Intangible assets [Line Items]
Other intangible assets, non-amortizing																		$ 34,800,000	$ 34,800,000	$ 59,400,000	$ 31,300,000
Gross carrying amount, amortizing intangible assets								75,600,000						20,300,000	[1]
Other intangible assets, gross carrying amount			162,000,000
Accumulated amortization, amortizing intangible assets			(51,300,000)					(37,400,000)						(13,900,000)	[1]
Remaining weighted average amortization period (in years)				11 years					11 years							10 years	[1]
Other Intangible Assets [Roll Forward]
Other intangible assets, non-amortizing, beginning balance																		34,800,000	34,800,000	31,300,000	31,300,000
Other intangible assets, amortizing, beginning balance						61,300,000	38,200,000			9,600,000	[1]	6,400,000	[1]
Other intangible assets, net, beginning balance	137,020,000	110,700,000
Additions from new business combinations, non-amortizing intangible assets																		0	0	29,600,000	0
Additions from new business combinations, amortizing intangible assets						19,500,000	34,000,000			2,800,000	[1]	4,500,000	[1]
Additions from new business combinations, other intangible assets	51,900,000	38,500,000
Amortization of intangible assets																						(21,200,000)	(12,200,000)	(13,900,000)	(19,600,000)	(10,900,000)	(1,600,000)	[1]	(1,300,000)	[1]
Currency translation adjustments, non-amortizing intangible assets																		0		(1,500,000)
Currency translation adjustments, amortizing intangible assets						(500,000)				(100,000)	[1]
Currency translation adjustments, other intangible assets					(2,100,000)
Other intangible assets, non-amortizing, ending balance																		34,800,000	34,800,000	59,400,000	31,300,000
Other intangible assets, amortizing, ending balance	71,400,000					60,700,000	61,300,000			10,700,000	[1]	9,600,000	[1]
Other intangible assets, net, ending balance	$ 165,606,000	$ 137,020,000

[1] Consists principally of trade names and non-compete agreements.