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OTHER RECEIVABLES (Details) (USD $) In Thousands, unless otherwise specified | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
--- | --- | --- | --- | ---
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Other Receivables | $ 16,703 us-gaap_OtherReceivables | $ 16,180 us-gaap_OtherReceivables |  |
Allowance for doubtful accounts | 9,980 us-gaap_AllowanceForDoubtfulAccountsReceivable | 9,912 us-gaap_AllowanceForDoubtfulAccountsReceivable | 9,857 us-gaap_AllowanceForDoubtfulAccountsReceivable | 4,487 us-gaap_AllowanceForDoubtfulAccountsReceivable
Agent receivables |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Other Receivables | 4,440 us-gaap_OtherReceivables / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = fro_AgentReceivablesMember | 5,065 us-gaap_OtherReceivables / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = fro_AgentReceivablesMember |  |
Claims receivables |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Other Receivables | 7,553 us-gaap_OtherReceivables / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = fro_ClaimsReceivablesMember | 4,938 us-gaap_OtherReceivables / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = fro_ClaimsReceivablesMember |  |
Other receivables |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Other Receivables | 4,710 us-gaap_OtherReceivables / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = fro_OtherReceivablesMember | 6,177 us-gaap_OtherReceivables / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = fro_OtherReceivablesMember |  |
Total Other Receivables [Member] |  |  |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |  |  |
Allowance for doubtful accounts | $ 0 us-gaap_AllowanceForDoubtfulAccountsReceivable / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = fro_TotalOtherReceivablesMember | $ 0 us-gaap_AllowanceForDoubtfulAccountsReceivable / us-gaap_AccountsNotesLoansAndFinancingReceivableByReceivableTypeAxis = fro_TotalOtherReceivablesMember |  |

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- Definition For an unclassified balance sheet, a valuation allowance for receivables due a company that are expected to be uncollectible. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 4 -Article 5 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=35738203&loc=d3e5074-111524 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Carrying amounts due as of the balance sheet date from parties or arising from transactions not otherwise specified in the taxonomy. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.8) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 8 -Article 5 + Details
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