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Carrying value, as of the balance sheet date, of obligations incurred through that date and payable arising from transactions relating to frequent players program. It is program whereby entity's participating patrons can accumulate points for wagering that can be redeemed for credits for free play on slot machines, lodging, food and beverage, merchandise and in limited situations, cash.

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 720
-SubTopic 35
-Section 50
-Paragraph 1
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Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage.

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A savings certificate entitling the Entity (that is, bearer) to receive interest at an established maturity date, based upon a fixed interest rate. A certificate of deposit may be issued in any denomination. Certificates of deposit are generally issued by commercial banks and, therefore, insured by the FDIC (up to the prescribed limit). Certificates of deposit generally restrict holders from withdrawing funds on demand without the incurrence of penalties. Generally, only certificates of deposit with original maturities of three months or less qualify as cash equivalents. Original maturity means original maturity to the entity holding the investment. As a related example, both a three-month US Treasury bill and a three-year Treasury note purchased three months from maturity qualify as cash equivalents. However, a Treasury note purchased three-years ago does not become a cash equivalent when its remaining maturity is three months.

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-Name Regulation S-X (SX)
-Number 210
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-Paragraph 1
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Description of credit risk arising from all financial instruments, whether from an individual counterparty or groups of counterparties. Includes disclosures concerning (a) information about the (shared) activity, region or economic characteristic that identifies the concentration, (b) the maximum amount of loss due to credit risk that would be incurred if the counterparties failed completely to perform according to the terms of the contracts, and any security or collateral for the amount due proved to be of no value, (c) the entity's policy of requiring collateral or other security to support financial instruments subject to credit risk, information about the entity's access to that collateral or other security, and the nature and a brief description of the collateral or other security supporting those financial instruments, and (d) the policy of entering into and information about master netting arrangements to mitigate the credit risk of financial instruments, and a brief description of the terms of those arrangements, including the extent to which they would reduce the maximum amount of loss due to credit risk.

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Total costs of sales and operating expenses for the period.

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This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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Amount of interest capitalized during the period.

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Cash and equivalents whose use in whole or in part is restricted for the long-term, generally by contractual agreements or regulatory requirements.

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Carrying amount (including both current and noncurrent portions) of accrued known and estimated losses incurred as of the balance sheet date for which no insurance coverage exists, and for which a claim has been made or is probable of being asserted, typically arising from workmen's compensation-type of incidents and personal injury to nonemployees from accidents on the entity's property.

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Summary of Significant Accounting Policies - Restricted cash - (Details) - USD ($)	3 Months Ended												12 Months Ended
	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Aug. 31, 2015	Aug. 31, 2014	Aug. 30, 2014	Aug. 02, 2014	Nov. 30, 2013	Jul. 28, 1995	Jul. 27, 1995	Feb. 28, 1994
Restricted Cash
Collateral for certificates of deposit																$ 5,000,000
Certificates of deposit																			$ 598,000
Collateral deposits					$ 2,500,000									$ 2,500,000
Accounts Receivable and Credit Risk
Concentration Risk, Credit Risk, Financial Instruments													0	0
Investment in Unconsolidated Affiliates
Impairment charge													$ 0	$ 0	$ 0
Self-Insurance Reserves
Accrued insurance and medical claims reserves	$ 3,500,000				1,300,000								3,500,000	1,300,000
Frequent Players Program
Aggregate outstanding liability for the frequent players program	3,400,000				2,400,000								3,400,000	2,400,000
Revenues and Promotional Allowances
Promotional Allowances	$ 17,680,000	$ 15,996,000	$ 15,723,000	$ 15,358,000	$ 15,841,000	$ 11,579,000	$ 10,976,000	$ 10,053,000	$ 10,284,000	$ 11,319,000	$ 11,036,000	$ 10,428,000	64,757,000	48,449,000	43,067,000
Advertising
Advertising Costs													31,200,000	22,000,000	17,700,000
Capitalized Interest
Capitalized interest costs.													$ 200,000
Silver Legacy Joint Venture
Restricted Cash
Collateral deposits																				$ 5,000,000
Investment in Unconsolidated Affiliates
Ownership interest (as a percent)	50.00%												50.00%								100.00%	48.10%
ELLC
Investment in Unconsolidated Affiliates
Ownership interest (as a percent)																						96.20%
ELLC \| Silver Legacy Joint Venture
Investment in Unconsolidated Affiliates
Ownership interest (as a percent)																						50.00%
Resorts \| Silver Legacy Joint Venture
Restricted Cash
Collateral deposits																				5,000,000
Investment in Unconsolidated Affiliates
Ownership interest (as a percent)	48.10%												48.10%
Resorts \| Tamarack
Investment in Unconsolidated Affiliates
Ownership interest (as a percent)																	21.30%	21.30%
Galleon \| Silver Legacy Joint Venture
Restricted Cash
Collateral deposits																				$ 5,000,000
Galleon \| ELLC
Investment in Unconsolidated Affiliates
Ownership interest (as a percent)																							50.00%
Complimentaries
Revenues and Promotional Allowances
Promotional Allowances													$ 64,757,000	48,449,000	43,067,000
Costs and Expenses													40,188,000	32,080,000	28,919,000
Food and Beverage
Revenues and Promotional Allowances
Promotional Allowances													44,998,000	33,182,000	29,356,000
Costs and Expenses													31,220,000	25,190,000	22,873,000
Hotel
Revenues and Promotional Allowances
Promotional Allowances													15,711,000	12,582,000	11,386,000
Costs and Expenses													6,638,000	5,030,000	4,438,000
Others
Revenues and Promotional Allowances
Promotional Allowances													4,048,000	2,685,000	2,325,000
Costs and Expenses													$ 2,330,000	$ 1,860,000	$ 1,608,000