Investment in Savoy (Narrative) (Details) - USD ($) $ in Millions	Nov. 03, 2016	Sep. 30, 2016
Subsequent Event [Member]
Cash distributions	$ 1.8
Savoy [Member] \| Subsequent Event [Member]
Cash recieved by equity investment for sale of equity	$ 9.5
Savoy [Member]
Equity method investment ownership percentage		40.00%
Savoy [Member] \| Subsequent Event [Member]
Ownership interest percentage before sale of stock	40.00%
Ownership interest percentage after sale of stock	30.60%
Cash distributions	$ 4.4
Savoy [Member] \| Lubar Equity Fund, LLC [Member] \| Subsequent Event [Member]
Equity method investment ownership percentage	25.00%

This item represents disclosure of the amount of dividends or other distributions received from unconsolidated subsidiaries, certain corporate joint ventures, and certain noncontrolled corporation; these investments are accounted for under the equity method of accounting. This element excludes distributions that constitute a return of investment, which are classified as investing activities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 03
-Paragraph 13
-Article 5

+ Details

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Balance Type:	debit
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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=6382943&loc=d3e33918-111571

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company after stock transaction.

+ References

No definition available.

+ Details

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- Definition

Percentage of subsidiary's or equity investee's stock owned by parent company before stock transaction.

+ References

No definition available.

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- Definition

Cumulative amount of cash and other consideration received by subsidiary or equity method investee in exchange for shares or stock issued or sold. Include amounts of cash received, fair value of non-cash assets received, fair value of liabilities assumed, and fair value of any other forms of consideration.

+ References

No definition available.

+ Details

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- Details

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- Details

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