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v3.3.1.900

Fair Value of Financial Instruments (Details-2) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Assets: |  |  |
Available-for-sale securities |  | $ 2,822 | $ 2,729
Liabilities: |  |  |
Derivative liability, collateral offset |  | 1,000 | 2,200
Recurring [Member] |  |  |
Assets: |  |  |
Derivative assets, net |  | 234 | 642
Total Assets |  | 993 | 1,569
Liabilities: |  |  |
Derivative liabilities, net | [1] | 54,316 | 55,640
Deferred compensation |  | 3,145 | 2,832
Total Liabilities |  | 57,461 | 58,472
Recurring [Member] | Exchange-traded investments |  |  |
Assets: |  |  |
Available-for-sale securities |  | 759 | 927
Recurring [Member] | Level 1 [Member] |  |  |
Assets: |  |  |
Derivative assets, net |  | 0 | 0
Total Assets |  | 759 | 927
Liabilities: |  |  |
Derivative liabilities, net | [1] | 581 | 1,012
Deferred compensation |  | 0 | 0
Total Liabilities |  | 581 | 1,012
Recurring [Member] | Level 1 [Member] | Exchange-traded investments |  |  |
Assets: |  |  |
Available-for-sale securities |  | 759 | 927
Recurring [Member] | Level 2 [Member] |  |  |
Assets: |  |  |
Derivative assets, net |  | 0 | 0
Total Assets |  | 0 | 0
Liabilities: |  |  |
Derivative liabilities, net | [1] | 0 | 0
Deferred compensation |  | 3,145 | 2,832
Total Liabilities |  | 3,145 | 2,832
Recurring [Member] | Level 2 [Member] | Exchange-traded investments |  |  |
Assets: |  |  |
Available-for-sale securities |  | 0 | 0
Recurring [Member] | Level 3 [Member] |  |  |
Assets: |  |  |
Derivative assets, net |  | 234 | 642
Total Assets |  | 234 | 642
Liabilities: |  |  |
Derivative liabilities, net | [1] | 53,735 | 54,628
Deferred compensation |  | 0 | 0
Total Liabilities |  | 53,735 | 54,628
Recurring [Member] | Level 3 [Member] | Exchange-traded investments |  |  |
Assets: |  |  |
Available-for-sale securities |  | 0 | 0
MGE [Member] |  |  |
Assets: |  |  |
Available-for-sale securities |  | 518 | 729
Liabilities: |  |  |
Derivative liability, collateral offset |  | 1,000 | 2,200
MGE [Member] | Recurring [Member] |  |  |
Assets: |  |  |
Derivative assets, net |  | 234 | 642
Total Assets |  | 382 | 992
Liabilities: |  |  |
Derivative liabilities, net | [1] | 54,316 | 55,640
Deferred compensation |  | 3,145 | 2,832
Total Liabilities |  | 57,461 | 58,472
MGE [Member] | Recurring [Member] | Exchange-traded investments |  |  |
Assets: |  |  |
Available-for-sale securities |  | 148 | 350
MGE [Member] | Recurring [Member] | Level 1 [Member] |  |  |
Assets: |  |  |
Derivative assets, net |  | 0 | 0
Total Assets |  | 148 | 350
Liabilities: |  |  |
Derivative liabilities, net | [1] | 581 | 1,012
Deferred compensation |  | 0 | 0
Total Liabilities |  | 581 | 1,012
MGE [Member] | Recurring [Member] | Level 1 [Member] | Exchange-traded investments |  |  |
Assets: |  |  |
Available-for-sale securities |  | 148 | 350
MGE [Member] | Recurring [Member] | Level 2 [Member] |  |  |
Assets: |  |  |
Derivative assets, net |  | 0 | 0
Total Assets |  | 0 | 0
Liabilities: |  |  |
Derivative liabilities, net | [1] | 0 | 0
Deferred compensation |  | 3,145 | 2,832
Total Liabilities |  | 3,145 | 2,832
MGE [Member] | Recurring [Member] | Level 2 [Member] | Exchange-traded investments |  |  |
Assets: |  |  |
Available-for-sale securities |  | 0 | 0
MGE [Member] | Recurring [Member] | Level 3 [Member] |  |  |
Assets: |  |  |
Derivative assets, net |  | 234 | 642
Total Assets |  | 234 | 642
Liabilities: |  |  |
Derivative liabilities, net | [1] | 53,735 | 54,628
Deferred compensation |  | 0 | 0
Total Liabilities |  | 53,735 | 54,628
MGE [Member] | Recurring [Member] | Level 3 [Member] | Exchange-traded investments |  |  |
Assets: |  |  |
Available-for-sale securities |  | $ 0 | $ 0
[1] | These amounts are shown gross and exclude $1.0 and $2.2 million of collateral that was posted against derivative positions with counterparties as of December 31, 2015 and 2014, respectively.

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