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LONG-TERM DEBT (Details) (USD $) |  |  | 1 Months Ended |  |  | 6 Months Ended |  |  |  | 6 Months Ended |  |  | 6 Months Ended |  | 6 Months Ended |  |  |  |  | 6 Months Ended |  | 6 Months Ended |  |  |  |  |
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Jun. 30, 2012 | Dec. 31, 2011 | May 31, 2011 BDC | May 02, 2011 M3 Wireless, Ltd. | Jun. 30, 2012 Credit facility Minimum LIBOR | Jun. 30, 2012 Credit facility Minimum Base rate | Jun. 30, 2012 Credit facility Maximum LIBOR | Jun. 30, 2012 Credit facility Maximum Base rate | Jun. 30, 2012 Amended 2010 Credit Facility | Jun. 30, 2012 Amended 2010 Credit Facility Base rate | Jun. 30, 2012 Amended 2010 Credit Facility One-week LIBOR | Jun. 30, 2012 Amended 2010 Credit Facility One-month LIBOR | Jun. 30, 2012 Term loans | Dec. 31, 2011 Term loans | Sep. 30, 2010 Term loans Credit facility | Jun. 30, 2012 Term loans Amended 2010 Credit Facility item | Sep. 30, 2010 Term loans Amended 2010 Credit Facility | Jun. 30, 2012 Term Loan A-1 | Jun. 30, 2012 Term Loan A-1 LIBOR | Jun. 30, 2012 Term Loan A-1 Amended 2010 Credit Facility Base rate | Jun. 30, 2012 Term Loan A-1 Amended 2010 Credit Facility Minimum Base rate | Jun. 30, 2012 Term Loan A-1 Amended 2010 Credit Facility Minimum One-month LIBOR | Jun. 30, 2012 Term Loan A-1 Amended 2010 Credit Facility Maximum Base rate | Jun. 30, 2012 Term Loan A-1 Amended 2010 Credit Facility Maximum One-month LIBOR | Jun. 30, 2012 Term Loan A-2 | Jun. 30, 2012 Term Loan A-2 Amended 2010 Credit Facility LIBOR | Jun. 30, 2012 Term Loan A-2 Amended 2010 Credit Facility Base rate | Jun. 30, 2012 Term Loan A-2 Amended 2010 Credit Facility Minimum LIBOR | Jun. 30, 2012 Term Loan A-2 Amended 2010 Credit Facility Minimum Base rate | Jun. 30, 2012 Term Loan A-2 Amended 2010 Credit Facility Maximum LIBOR | Jun. 30, 2012 Term Loan A-2 Amended 2010 Credit Facility Maximum Base rate | Dec. 31, 2011 Revolver loan | Sep. 30, 2010 Revolver loan Credit facility | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility LIBOR | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility Base rate | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility Minimum | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility Minimum Base rate | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility Minimum One-month LIBOR | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility Maximum | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility Maximum Base rate | Jun. 30, 2012 Revolver loan Amended 2010 Credit Facility Maximum One-month LIBOR | Sep. 30, 2010 Swingline sub-facility Credit facility | Jun. 30, 2012 Swingline sub-facility Credit facility Minimum Base rate | Jun. 30, 2012 Swingline sub-facility Credit facility Maximum Base rate | Jun. 30, 2012 Swingline sub-facility Amended 2010 Credit Facility | Jun. 30, 2012 Swingline sub-facility Amended 2010 Credit Facility Minimum Base rate | Jun. 30, 2012 Swingline sub-facility Amended 2010 Credit Facility Maximum Base rate | Jun. 30, 2012 Note Payable - Other | Dec. 31, 2011 Note Payable - Other | May 02, 2011 Note Payable - Other M3 Wireless, Ltd. Keytech Ltd.
Long-term debt |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding debt | $ 279,912,000 | $ 286,021,000 |  |  |  |  |  |  |  |  |  |  | $ 275,000,000 | $ 252,311,000 |  |  |  | $ 125,000,000 |  |  |  |  |  |  | $ 150,000,000 |  |  |  |  |  |  | $ 28,156,000 |  | $ 41,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 4,912,000 | $ 5,752,000 |
Less: current portion | (15,680,000) | (25,068,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total long-term debt | 264,232,000 | 260,953,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Less: debt discount | (5,997,000) | (3,807,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Net carrying amount | 258,235,000 | 257,146,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 275,000,000 | 275,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000,000 | 100,000,000 |  |  |  |  |  |  |  |  | 10,000,000 |  |  | 10,000,000 |  |  |  |  |
Number of term loans |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Additional borrowings subject to lender approval |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50,000,000 | 100,000,000 | 50,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Description of variable rate basis |  |  |  |  |  |  |  |  |  | Base Rate | One-week LIBOR | One-month LIBOR |  |  |  |  |  |  | LIBOR | Base Rate |  |  |  |  |  | LIBOR | Base Rate |  |  |  |  |  |  |  | LIBOR | Base Rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Basis spread on variable rate (as a percent) |  |  |  |  | 2.75% | 1.75% | 4.25% | 3.25% |  | 1.50% |  |  |  |  |  |  |  |  |  |  | 1.00% | 2.00% | 2.50% | 3.50% |  |  |  | 2.50% | 1.50% | 4.00% | 3.00% |  |  |  |  |  |  | 1.00% | 2.00% |  | 2.50% | 3.50% |  | 1.25% | 2.75% |  | 0.50% | 2.00% |  |  |
Weighted-average interest rate (as a percent) |  |  |  |  |  |  |  |  | 4.45% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred financing costs |  |  |  |  |  |  |  |  | 700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Term loan owed to related party |  |  |  | $ 7,012,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,000,000
Ownership interest held by minority shareholder (as a percent) |  |  | 42.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Effective interest rate (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.00%
Commitment fee (as a percent) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.25% |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |

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