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Long-Term Debt (Boyd Credit Agreement - Narrative) (Details) - USD ($) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Aug. 14, 2013
Line of Credit Facility [Line Items] |  |  |  |
Loss on early extinguishment of debt | $ 40,733,000 | $ 1,536,000 | $ 28,346,000 |
Amortization of debt financing costs and discounts on debt | $ 21,308,000 | 22,377,000 | $ 34,126,000 |
Boyd |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Loss on early extinguishment of debt |  | 20,800,000 |  |
Maximum secured leverage ratio | 4.25 |  |  |
Line of Credit Facility, Covenant Terms, Minimum Secured Leverage Ratio Allowed | 1.00 |  |  |
Debt Instrument, Annual Principal Payment | $ 21,500,000 | 21,500,000 |  |
Debt Instrument, Optional Annual Principal Payment | $ 126,600,000 | 61,000,000 |  |
Line of Credit Facility, Covenant Terms, Minimum Consolidated Interest Coverage Ratio Required | 1.00 |  |  |
Boyd | Amended Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  | $ 600,000,000
Revolving Credit Facility and Term Loan | Boyd | Amended Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Additional available borrowing capacity | $ 400,000,000 |  |  |
Revolving Credit Facility | Boyd | Amended Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Additional available borrowing capacity | 150,000,000 |  |  |
Swing Loan | Boyd | Amended Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  | 100,000,000
Term Loan A | Boyd | Amended Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  | 250,000,000
Amortization of debt financing costs and discounts on debt | 0.0500 |  |  |
Term Loan B | Boyd | Amended Credit Facility |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Line of credit, maximum borrowing capacity |  |  |  | $ 900,000,000
Amortization of debt financing costs and discounts on debt | 0.0100 |  |  |
Letter of Credit | Boyd |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Amount outstanding | 7,100,000 |  |  |
Bank Credit Facility | Boyd |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Amount outstanding | 1,209,725,000 | 1,387,425,000 |  |
Remaining borrowing capacity | $ 297,200,000 |  |  |
Bank Credit Facility | Incremental Term Loan | Boyd |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Fixed quarterly amortization of principal, percentage | 0.25% |  |  |
Amount outstanding | $ 730,750,000 | 840,750,000 |  |
Bank Credit Facility | Initial Term Loan | Boyd |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Fixed quarterly amortization of principal, percentage | 1.25% |  |  |
Amount outstanding | $ 183,275,000 | 221,375,000 |  |
Bank Credit Facility | Revolving Credit Facility | Boyd |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Amount outstanding | 240,000,000 | 300,000,000 |  |
Bank Credit Facility | Swing Loan | Boyd |  |  |  |
Line of Credit Facility [Line Items] |  |  |  |
Amount outstanding | $ 55,700,000 | $ 25,300,000 |  |

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- Definition Amount of noncash expense included in interest expense to issue debt and obtain financing associated with the related debt instruments. Alternate captions include noncash interest expense. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -URI http://asc.fasb.org/extlink&oid=56944662&loc=d3e3602-108585 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 225 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.8) -URI http://asc.fasb.org/extlink&oid=26872669&loc=d3e20235-122688 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 04 -Paragraph 8 -Article 9 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03.16) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03.16) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 19, 20, 22 -Article 5 + Details
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