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COMMITMENTS AND CONTINGENCIES (Details) (USD $) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2012 | Dec. 31, 2011 | Dec. 31, 2010 | Dec. 31, 2009
Leases |  |  |  |
2013 | $ 3,135,000 |  |  |
2014 | 3,287,000 |  |  |
2015 | 3,353,000 |  |  |
2016 | 1,652,000 |  |  |
Future minimum lease payments | 11,427,000 |  |  |
Rent expense |  |  |  |
Rent expense | 6,300,000 | 13,800,000 | 15,900,000 |
Third Party Commissions |  |  |  |
Accrued commissions | 100,000 | 1,200,000 |  |
Period after formal communication to agents after which the entity concluded that the statute of limitations had expired for accrued commissions | 2 years |  |  |
Accrued commissions released to cost of net sales | 500,000 |  | 6,000,000 |
Revenue recognized related to security agreements | 0 | 0 |  |
Deferred revenue related to contracts covered by security agreements | 9,800,000 | 5,300,000 |  |
Deferred costs related to contracts covered by security agreements | 6,100,000 | 4,100,000 |  |
Letter of credit: |  |  |  |
Outstanding bid bond | 1,300,000 |  |  |
Outstanding letters of credit | 11,500,000 |  |  |
Outstanding purchase commitments, including agreements that are non-cancelable and cancelable without penalty | 39,300,000 |  |  |
Intellectual Property |  |  |  |
Claims made for valid enforceable IP | 0 |  |  |
Uncertain Tax Positions |  |  |  |
Gross unrecognized tax benefits | 54,012,000 | 55,650,000 | 56,513,000 | 90,597,000
Unrecognized tax benefits that would impact the annual effective tax rate if recognized | 12,298,000 | 13,554,000 | 14,417,000 |
Unrecognized tax benefits related to deferred tax assets and federal tax benefit of state income tax items | $ 41,700,000 |  |  |

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