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Deferred Finance Costs - Summary of Deferred Financing Cost (Detail) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2013
Dec. 31, 2012
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]    
Gross cost $ 2.6 $ 1.7
Accumulated amortization (0.8) (0.4)
Deferred Finance Costs, Net $ 1.8 $ 1.3