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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 |  |

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