Other Balance Sheet And Statement Of Earnings (Loss) Captions (Accrued Liabilities) (Detail) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Accounts Payable And Accrued Liabilities [Line Items]
Accrued liabilities	$ 9,088	$ 5,619
Other Accrued Liabilities [Member]
Accounts Payable And Accrued Liabilities [Line Items]
Accrued liabilities	3,591	1,560
Accrued Commissions (AGLC) [Member]
Accounts Payable And Accrued Liabilities [Line Items]
Accrued liabilities	1,394	1,552
Progressive Slot And Table Liability [Member]
Accounts Payable And Accrued Liabilities [Line Items]
Accrued liabilities	1,317	917
Apex Acquisition Liability (Note 3) [Member]
Accounts Payable And Accrued Liabilities [Line Items]
Accrued liabilities	1,494	0
Player Point Liability [Member]
Accounts Payable And Accrued Liabilities [Line Items]
Accrued liabilities	671	708
Chip Liability [Member]
Accounts Payable And Accrued Liabilities [Line Items]
Accrued liabilities	567	349
Deposit Liability [Member]
Accounts Payable And Accrued Liabilities [Line Items]
Accrued liabilities	$ 621	$ 533