| **CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($)**             | Sep. 30, 2016 | Dec. 31, 2015 |
|-----------------------------------------------------------------------|---------------|---------------|
| **LIABILITIES AND STOCKHOLDERS’ EQUITY**                        |          |          |
| Related party accrued interest                                        | $ 3,718,000   | $ 5,132,000   |
| Related party long-term debt                                          | 56,157,000    | 54,810,000    |
| Related party capital lease obligations, excluding current maturities | 1,785,000     | 1,824,000     |
| Related party derivative stock appreciation rights                    | $ 16,980,000  | $ 32,820,000  |
| Common Stock - Class A [Member]                                       |          |          |
| **LIABILITIES AND STOCKHOLDERS’ EQUITY**                        |          |          |
| Common Stock, no par                                                  |               |               |
| Common Stock, Shares Authorized                                       | 100,000,000   | 100,000,000   |
| Common Stock, Shares Issued                                           | 33,164,000    | 35,593,000    |
| Common Stock, Shares Outstanding                                      | 33,138,000    | 35,567,000    |
| Treasury Stock, Shares                                                | 26,000        | 26,000        |
| Common Stock - Class B [Member]                                       |          |          |
| **LIABILITIES AND STOCKHOLDERS’ EQUITY**                        |          |          |
| Common Stock, no par                                                  |               |               |
| Common Stock, Shares Authorized                                       | 10,000,000    | 10,000,000    |
| Common Stock, Shares Issued                                           | 3,154,000     | 3,154,000     |
| Common Stock, Shares Outstanding                                      | 3,154,000     | 3,154,000     |

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|--------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal, through the balance sheet date and due to be paid more than one year (or one operating cycle, if longer) after the balance sheet date. Specific to related-parties.
+ References
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| X                                                                                                                                                                                                                                                       |
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| - Definition
RelatedPartyDerivativeLiability
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                    |
|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Face amount per share of no-par value common stock.
+ References
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|----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The maximum number of common shares permitted to be issued by an entity's charter and bylaws.
+ References
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|-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.
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|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.
+ References
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|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
Carrying amount as of the balance sheet date of obligations due all related parties. For classified balance sheets, represents the current portion of such liabilities (due within one year or within the normal operating cycle if longer).
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|------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| - Definition
The amount for notes payable (written promise to pay), payable to related parties, which are due after one year (or one business cycle).
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| - Definition
Number of common and preferred shares that were previously issued and that were repurchased by the issuing entity and held in treasury on the financial statement date. This stock has no voting rights and receives no dividends.
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