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INCOME TAXES (Details 2) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 31, 2013 | Sep. 30, 2013 | Jun. 30, 2013 | Mar. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Jun. 30, 2012 | Mar. 31, 2012 | Dec. 31, 2013 | Dec. 31, 2012 | Dec. 31, 2011
Reconciliation from the tax computed at statutory income tax rates to the Company's income tax expense |  |  |  |  |  |  |  |  |  |  |
Tax computed at statutory U.S. federal income tax rates |  |  |  |  |  |  |  |  | $ 16,270 | $ 15,679 | $ 9,203
Valuation allowance |  |  |  |  |  |  |  |  | 711 | 832 |
Foreign tax reserve |  |  |  |  |  |  |  |  | 2,081 | 2,359 | 556
State taxes |  |  |  |  |  |  |  |  | 1,032 | 906 | (76)
Research and development credit |  |  |  |  |  |  |  |  |  | (1,971) |
Other, net |  |  |  |  |  |  |  |  | 516 | 1,711 | (13)
Income tax expense | (1,758) | 2,481 | 4,868 | 3,945 | 11,799 | 4,145 | 2,673 | 2,214 | 9,536 | 20,831 | 14,620
Guyana |  |  |  |  |  |  |  |  |  |  |
Reconciliation from the tax computed at statutory income tax rates to the Company's income tax expense |  |  |  |  |  |  |  |  |  |  |
Income taxes in excess (below) of statutory U.S. tax rates |  |  |  |  |  |  |  |  | 701 | 812 | 2,096
Bermuda and Turks & Caicos |  |  |  |  |  |  |  |  |  |  |
Reconciliation from the tax computed at statutory income tax rates to the Company's income tax expense |  |  |  |  |  |  |  |  |  |  |
Income taxes in excess (below) of statutory U.S. tax rates |  |  |  |  |  |  |  |  | (3,203) | 503 | 2,854
Turks & Caicos intercompany note receivable write-down |  |  |  |  |  |  |  |  |  |  |
Reconciliation from the tax computed at statutory income tax rates to the Company's income tax expense |  |  |  |  |  |  |  |  |  |  |
Income taxes in excess (below) of statutory U.S. tax rates |  |  |  |  |  |  |  |  | $ (8,572) |  |

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- Definition The portion of the difference between total income tax expense or benefit as reported in the Income Statement for the period and the expected income tax expense or benefit computed by applying the domestic federal statutory income tax rates to pretax income from continuing operations attributable to the foreign tax reserve made under enacted tax laws. + References No definition available. + Details
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(h)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Article 4 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Income Tax Expense (or Benefit) -URI http://asc.fasb.org/extlink&oid=6515339 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 9 -Subparagraph (a),(b) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to increase (decrease) in the valuation allowance for deferred tax assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=21917399&loc=d3e32123-109318 + Details
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- Definition Amount of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to foreign income tax expense (benefit). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32687-109319 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32698-109319 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 08 -Paragraph h -Subparagraph 1 -Article 4 + Details
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