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Accounts Receivable, Net - Allowance for Doubtful Receivables (Table) (Details) (USD $)
In Thousands, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Accounts Receivable, Net [Abstract]      
Balance at beginning of period $ (613)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ (458)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ (49)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent
Charges to costs and expenses 0us-gaap_ProvisionForDoubtfulAccounts (155)us-gaap_ProvisionForDoubtfulAccounts (409)us-gaap_ProvisionForDoubtfulAccounts
Amount utilized 564us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs 0us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs 0us-gaap_AllowanceForDoubtfulAccountsReceivableWriteOffs
Balance at end of period $ (49)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ (613)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent $ (458)us-gaap_AllowanceForDoubtfulAccountsReceivableCurrent