Annual report pursuant to Section 13 and 15(d)

Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Detail)

v2.4.0.8
Accumulated Other Comprehensive Income (Loss) - Summary of Changes in Accumulated Other Comprehensive Income (Loss) (Detail) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at December 31, 2012 $ (19,963)    
Other comprehensive income (loss) before reclassifications 4,081    
Amounts reclassified out of accumulated other comprehensive income (loss) 7,300    
Other comprehensive income (loss) 11,381 1,527 (2,807)
Balance at December 31, 2013 (8,582) (19,963)  
Gains and Losses on Cash Flow Hedges [Member]
      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at December 31, 2012 (19,488)    
Other comprehensive income (loss) before reclassifications 3,329    
Amounts reclassified out of accumulated other comprehensive income (loss) 7,300    
Other comprehensive income (loss) 10,629    
Balance at December 31, 2013 (8,859)    
Defined Benefit Pension Plan [Member]
      
Accumulated Other Comprehensive Income (Loss) [Line Items]      
Balance at December 31, 2012 (475)    
Other comprehensive income (loss) before reclassifications 752    
Other comprehensive income (loss) 752    
Balance at December 31, 2013 $ 277