Summary of Unaudited Pro Forma Combined Financial Information (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017
Marnell Gaming,LLC [Member]
Business Acquisition [Line Items]
Pro forma combined revenues	$ 951,802
Pro forma combined net income (loss)	$ (16,432)
Weighted-average common shares outstanding:
Basic	28,464
Diluted	28,464
Pro forma combined net income (loss) per share:
Basic	$ (0.58)
Diluted	$ (0.58)
American Acquisition [Member]
Business Acquisition [Line Items]
Pro forma combined revenues		$ 843,589
Pro forma combined net income (loss)		$ 23,131
Weighted-average common shares outstanding:
Basic		26,342
Diluted		27,897
Pro forma combined net income (loss) per share:
Basic		$ 0.88
Diluted		$ 0.83

Business acquisitions pro forma weighted average common shares outstanding.

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