Annual report pursuant to Section 13 and 15(d)

Commitments and Contingencies (Details 3)

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Commitments and Contingencies (Details 3) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
item
Commitments and Contingencies  
Number of previous claims experienced 0
Future minimum unconditional purchase obligations to be incurred in 2014 $ 1,403