Annual report pursuant to Section 13 and 15(d)

Business Acquisitions and Dispositions - Summary of Consolidated Pro Forma Results of Future Operations (Detail)

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Business Acquisitions and Dispositions - Summary of Consolidated Pro Forma Results of Future Operations (Detail) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Business Combinations [Abstract]    
Total revenues $ 8,945,740 $ 8,531,424
Gross profit 1,318,320 1,261,954
Income from continuing operations before taxes 129,588 142,766
Net income from continuing operations $ 85,024 $ 92,197
Diluted earnings per share from continuing operations $ 1.59 $ 1.58