Goodwill and Intangible Assets (Narrative) (Detail) (USD $)	3 Months Ended	12 Months Ended
	Mar. 31, 2014 Segment	Dec. 31, 2012	Dec. 31, 2013
Goodwill And Intangible Assets [Line Items]
Number of reporting units	8
Estimated cost of capital, minimum		10.00%
Estimated cost of capital, maximum		13.00%
Estimated cost of capital, weighted		11.00%
Hypothetical decrease to fair values of each reporting unit		10.00%
Net intangible assets	$ 398,337,000		$ 408,923,000
Intangibles with indefinite useful lives	30,800,000
Estimated amortization expense for intangible assets, current year	34,100,000
Estimated amortization expense for intangible assets, year 2013	38,700,000
Estimated amortization expense for intangible assets, year 2014	37,900,000
Estimated amortization expense for intangible assets, year 2015	37,000,000
Estimated amortization expense for intangible assets, year 2016	34,100,000
Estimated amortization expense for intangible assets, year 2017 and thereafter	$ 185,800,000