Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

Entity-Wide Disclosure (Schedule of Net Sales by Geographic Area) (Details)

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Entity-Wide Disclosure (Schedule of Net Sales by Geographic Area) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Net sales $ 484,403 $ 215,244 $ 155,894
North America [Member]
     
Net sales 262,614 113,854 82,373
Europe and Middle East [Member]
     
Net sales 126,214 62,781 49,885
Asia Pacific [Member]
     
Net sales 90,023 35,450 21,506
Other [Member]
     
Net sales $ 5,552 $ 3,159 $ 2,130