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Capitalized and Expensed (Detail) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Component Of Operating Cost And Expense [Line Items]          
Cost of goods sold expensed $ 5,025 $ 2,844 $ 9,271 $ 4,131  
Finished goods inventory held by others   695   695 627
Direct Operating Costs     $ 9,271 $ 4,826