Quarterly report pursuant to Section 13 or 15(d)

Fair Value Measurements - Assets or Liabilities Recorded at Fair Value (Detail)

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Fair Value Measurements - Assets or Liabilities Recorded at Fair Value (Detail) (Significant Other Observable Inputs (Level 2) [Member], USD $)
In Thousands, unless otherwise specified
Sep. 30, 2014
Dec. 31, 2013
Significant Other Observable Inputs (Level 2) [Member]
   
Assets:    
Cash surrender value of life insurance policies $ 27,412 $ 25,301
Cash flow swaps designated as hedges 2,022 3,707
Total assets 29,434 29,008
Liabilities:    
Cash flow swaps designated as hedges 11,088 17,995
Cash flow swaps not designated as hedges 1,578 2,046
Deferred compensation plan 15,917 14,842
Total liabilities $ 28,583 $ 34,883