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Financial Instruments and Fair Value Measurements (Details Textual) |  | 6 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | --- | ---
Jan. 29, 2016 USD ($) payment | Jun. 30, 2016 USD ($) payment | Dec. 31, 2015 USD ($) | Apr. 22, 2016 USD ($) | Jul. 31, 2015 USD ($)
Land [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Tangible Asset Impairment Charges |  | $ 0 | $ 0 |  |
Initial Montana Acquisition [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, Value, High | $ 2,000,000 |  |  |  |
Business Combination, Contingent Consideration, Liability |  | $ 2,000,000 |  |  |
Business Combination, Contingent Consideration Arrangements, Number of Periodic Payment | payment | 4 | 4 |  |  |
Initial Montana Acquisition [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Finite and Indefinite-lived Intangible Assets, Excluding Goodwill, Fair Value Disclosure | $ 14,200,000 |  |  |  |
Initial Montana Acquisition [Member] | Property and Equipment [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Property, Plant, and Equipment, Fair Value Disclosure | $ 2,400,000 |  |  |  |
Sartini Gaming [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Finite and Indefinite-lived Intangible Assets, Excluding Goodwill, Fair Value Disclosure |  |  |  |  | $ 80,500,000
Sartini Gaming [Member] | Land and Land Improvements [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Property, Plant, and Equipment, Fair Value Disclosure |  |  |  |  | 37,800,000
Sartini Gaming [Member] | Other Assets Acquired [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Property, Plant, and Equipment, Fair Value Disclosure |  |  |  |  | $ 46,300,000
Second Montana Acquisition [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Finite and Indefinite-lived Intangible Assets, Excluding Goodwill, Fair Value Disclosure |  |  |  | $ 11,100,000 |
Second Montana Acquisition [Member] | Property and Equipment [Member] | Fair Value, Inputs, Level 3 [Member] |  |  |  |  |
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items] |  |  |  |  |
Property, Plant, and Equipment, Fair Value Disclosure |  |  |  | $ 7,800,000 |

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- Definition For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 30 -Section 50 -Paragraph 1 -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479 + Details
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- Definition Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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