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FINANCIAL INSTRUMENTS - Fair Values (Details) - USD ($) $ in Thousands | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014
Carrying Value and Estimated Fair Values |  |
Gross amounts presented in the consolidated balance sheet, Total asset derivatives | $ 5,330 | $ 12,603
Gross amounts not offset in the consolidated balance sheet subject to netting agreements | (216) | (292)
Net amount, Total asset derivatives | 5,114 | 12,311
Gross amounts presented in the consolidated balance sheet, Total liability derivatives | 4,597 | 3,038
Net amount, Total liability derivatives | 4,381 | 2,746
Cash collateral | $ 408,563 | 74,587
Share Repurchase Forward Swap |  |
Carrying Value and Estimated Fair Values |  |
Collateral required under share repurchase agreement, percentage of total purchase price | 20.00% |
Cash collateral | $ 92,800 |
Interest rate swap |  |
Carrying Value and Estimated Fair Values |  |
Derivative asset | 5,330 | 12,603
Interest rate swap | Not Designated as Hedging Instrument |  |
Carrying Value and Estimated Fair Values |  |
Derivative asset | 5,330 | 12,603
Derivative liability | 4,597 | 2,673
Interest rate swap | Designated as Hedging Instrument |  |
Carrying Value and Estimated Fair Values |  |
Derivative liability | 0 | 365
Interest rate swap | Cash flow hedging |  |
Carrying Value and Estimated Fair Values |  |
Fair value/carrying value of derivatives |  | 400
Notional value |  | 100,900
Interest rate swap | Cash flow hedging | Designated as Hedging Instrument |  |
Carrying Value and Estimated Fair Values |  |
Notional value | 1,250,000 | 1,475,937
Equity Swap | Not Designated as Hedging Instrument |  |
Carrying Value and Estimated Fair Values |  |
Derivative liability | 81,581 | 13,656
Currency swap |  |
Carrying Value and Estimated Fair Values |  |
Derivative liability | 86,178 | 16,694
Level 1 | Carrying Value |  |
Carrying Value and Estimated Fair Values |  |
Cash and cash equivalents | 105,235 | 191,410
Restricted cash and short-term receivables | 408,563 | 74,587
Investment in available-for-sale securities | 25,530 | 275,307
Level 1 | Fair Value |  |
Carrying Value and Estimated Fair Values |  |
Cash and cash equivalents | 105,235 | 191,410
Restricted cash and short-term receivables | 408,563 | 74,587
Investment in available-for-sale securities | 25,530 | 275,307
Level 3 | Carrying Value |  |
Carrying Value and Estimated Fair Values |  |
Cost method investments | 204,172 | 204,172
Level 3 | Fair Value |  |
Carrying Value and Estimated Fair Values |  |
Cost method investments | 82,564 | 248,314
Level 2 | Carrying Value |  |
Carrying Value and Estimated Fair Values |  |
Short-term debt due from related parties | 0 | 20,000
Short-term loans receivable | 6,375 | 8,141
Short-term debt | 408,978 | 108,781
Current portion of long-term debt | 92,640 | 7,650
Long-term debt - convertible bond | 243,369 | 238,037
Long-term debt | 1,133,074 | 1,026,319
Level 2 | Carrying Value | Interest rate swap |  |
Carrying Value and Estimated Fair Values |  |
Derivative asset | 5,330 | 12,603
Derivative liability | 4,597 | 3,038
Level 2 | Carrying Value | Equity Swap |  |
Carrying Value and Estimated Fair Values |  |
Derivative liability | 81,581 | 13,656
Level 2 | Fair Value |  |
Carrying Value and Estimated Fair Values |  |
Short-term debt due from related parties | 0 | 20,000
Short-term loans receivable | 6,375 | 8,141
Short-term debt | 408,978 | 108,781
Current portion of long-term debt | 92,640 | 7,650
Long-term debt - convertible bond | 231,945 | 251,555
Long-term debt | 1,133,074 | 1,026,319
Level 2 | Fair Value | Interest rate swap |  |
Carrying Value and Estimated Fair Values |  |
Derivative asset | 5,330 | 12,603
Derivative liability | 4,597 | 3,038
Level 2 | Fair Value | Equity Swap |  |
Carrying Value and Estimated Fair Values |  |
Derivative liability | $ 81,581 | $ 13,656

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