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GOODWILL AND INTANGIBLE ASSETS (Details) (USD $) In Thousands, unless otherwise specified | 3 Months Ended | 6 Months Ended | 2 Months Ended |  | 6 Months Ended
--- | --- | --- | --- | --- | ---
Jun. 30, 2011 | Jun. 30, 2012 | Jun. 30, 2012 Riviera | Apr. 26, 2012 Riviera | Jun. 30, 2012 Customer list | Jun. 30, 2012 Customer list Riviera | Jun. 30, 2012 Trade Name | Jun. 30, 2012 Trade Name Riviera
Intangible assets |  |  |  |  |  |  |  |
Amount of goodwill recorded |  |  |  | $ 26,576 |  |  |  |
Estimated Average Life |  | 7 years 10 months 24 days |  |  | 9 years | 9 years | 1 year | 1 year
Total Intangible assets |  | 12,080 |  |  | 10,490 | 10,500 | 1,590 | 1,600
Total accumulated amortization |  | (497) |  |  | (210) |  | (287) |
Total |  | 11,583 |  |  |  |  |  |
Fair value inputs |  |  |  |  |  |  |  |
Attrition rate (as a percent) | 12.00% |  |  |  |  | 24.00% |  | 12.00%
Risk-adjusted discount rate (as a percent) |  |  |  |  |  |  |  | 11.00%
Royalty rate (as a percent) |  |  |  |  |  |  |  | 1.00%
Amortization expense |  | $ 497 | $ 497 |  |  |  |  |

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- Definition The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 142 -Paragraph 45 -Subparagraph a(2) -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6388964&loc=d3e16225-109274 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 30 -Section 50 -Paragraph 2 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=7658586&loc=d3e16323-109275 + Details
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- Definition Amount of goodwill arising from a business combination, which is the excess of the cost of the acquired entity over the amounts assigned to assets acquired and liabilities assumed. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 52 -Subparagraph c -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Statement of Financial Accounting Standard (FAS) -Number 141 -Paragraph 53 -Subparagraph d -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. + Details
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- Definition Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI http://asc.fasb.org/extlink&oid=7578670&loc=d3e19207-110258 + Details
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