Fair Value Measurements (Fair Value, Recurring and Nonrecurring, Valuation Techniques) (Details) - USD ($) $ in Thousands	6 Months Ended
Jun. 30, 2015	Dec. 31, 2014
Discount Rate \| Contingent Payments \| Level 3
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques, Unobservable Inputs, Rate, Percentage	18.50%
Discount Rate \| Available-for-sale Securities \| Level 3
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques, Unobservable Inputs, Rate, Percentage	10.39%
Fair Value, Measurements, Recurring [Member] \| Carrying Value
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment available for sale	$ 21,400
Fair Value, Measurements, Recurring [Member] \| Level 3
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Investment available for sale	17,276	$ 18,357
Peninsula Gaming
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]
Business Combination, Contingent Consideration, Liability for Payments to Option Holder, Noncurrent	2,800	2,900
Investment available for sale	16,900	$ 18,000
Available-for-sale Securities, Current	400
Fair Value, Discount Amount, Available for sales securities	$ 3,300

Business Combination, Contingent Consideration, Liability for Payments to Option Holder, Noncurrent

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- Definition

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- Definition

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 320

-SubTopic 10

-Section 25

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