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Debt - Additional Information (Detail) (USD $)
In Thousands, unless otherwise specified
0 Months Ended 0 Months Ended
Jun. 30, 2014
Dec. 31, 2013
Jun. 25, 2014
Before Extension
Jun. 25, 2014
Before Extension
Jun. 25, 2014
Before Extension
Swingline Subfacility
Jun. 25, 2014
After Extension
Jun. 25, 2014
After Extension
Jun. 25, 2014
After Extension
Swingline Subfacility
Debt Instrument [Line Items]                
Revolving credit agreement maximum borrowing capacity       $ 500,000 $ 65,000   $ 600,000 $ 90,000
Revolving credit agreement maturity date     Jul. 01, 2018     Jul. 01, 2019    
Outstanding amount under revolving credit agreement $ 348,787 $ 230,044