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Note 2 - Acquisitions & Divestitures - Schedule of Acquired Property and Equipment of Valley Forge Convention Center Partners (Details) - Valley Forge Convention Center Partners, L.P. [Member] $ in Thousands	Jun. 30, 2019 USD ($)
Property and Equipment, Recorded Amount	$ 57,118
Land [Member]
Property and Equipment, Recorded Amount	15,150
Building and Building Improvements [Member]
Property and Equipment, Recorded Amount	32,908
Furniture and Fixtures [Member]
Property and Equipment, Recorded Amount	$ 9,060

X

- Definition

The amount of property, plant, and equipment recognized as of the acquisition date.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 55
-Paragraph 37
-URI http://asc.fasb.org/extlink&oid=116868840&loc=d3e2207-128464

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=116869197&loc=d3e4845-128472

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

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X

- Details

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- Details

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- Details

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