Organization and Basis of Presentation	12 Months Ended
Dec. 31, 2016
Organization Consolidation And Presentation Of Financial Statements [Abstract]
Organization and Basis of Presentation	Note 1. Organization and Basis of Presentation The accompanying consolidated financial statements include the accounts of Eldorado Resorts, Inc. (“ERI” or the “Company”), a Nevada corporation formed in September 2013, and its consolidated subsidiaries. As explained in greater detail in Note 3, ERI was formed in September 2013 to be the parent company following the merger of wholly-owned subsidiaries of the Company into Eldorado HoldCo LLC (“HoldCo”), a Nevada limited liability company formed in 2009 that is the parent company of Eldorado Resorts LLC (“Resorts”), and MTR Gaming Group, Inc. (“MTR Gaming”), a Delaware corporation incorporated in 1988 (the “MTR Merger”). Effective upon the consummation of the MTR Merger on September 19, 2014 (the “MTR Merger Date”), MTR Gaming and HoldCo each became a wholly-owned subsidiary of ERI and, as a result of such transactions, Resorts became an indirect wholly-owned subsidiary of ERI. The MTR Merger has been accounted for as a reverse acquisition of MTR Gaming by HoldCo under accounting principles generally accepted in the United States (“US GAAP”). As a result, HoldCo is considered the acquirer of MTR Gaming for accounting purposes. The accompanying consolidated financial statements for periods prior to the MTR Merger Date are those of HoldCo and its subsidiaries, and for periods subsequent to the MTR Merger Date also include MTR Gaming and its subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation. On November 24, 2015 (the “Reno Acquisition Date”), Resorts consummated the acquisition of all of the assets and properties of Circus Circus Reno (“Circus Reno”) and the 50% membership interest in the Silver Legacy Joint Venture owned by Galleon, Inc. (collectively, the “Circus Reno/Silver Legacy Purchase” or the “Reno Acquisition”) pursuant to a Purchase and Sale Agreement, dated as of July 7, 2015 (the “Purchase Agreement”), entered into with Circus Circus Casinos, Inc. and Galleon, Inc., each an affiliate of MGM Resorts International, with respect to the acquisition. On the Reno Acquisition Date, Eldorado Resorts LLC also exercised its right to acquire the 3.8% interest in Eldorado Limited Liability Company (“ELLC”) held by certain affiliates and stockholders of the Company. As a result of these transactions, ELLC and CC-Reno, LLC, a newly formed Nevada limited liability company, became wholly-owned subsidiaries of ERI, and Silver Legacy became an indirect wholly‑owned subsidiary of ERI. The accompanying consolidated financial statements for periods prior to the Reno Acquisition Date do not include the results of operations for Circus Reno and account for Silver Legacy as an investment in unconsolidated affiliate. Resorts owns and operates the Eldorado Resorts Casino Reno, a premier hotel, casino and entertainment facility centrally located in downtown Reno, Nevada (the “Eldorado Reno”), which opened for business in 1973. Resorts also owns Eldorado Resort Casino Shreveport (“Eldorado Shreveport”), a 403‑room all suite art deco‑style hotel and a tri‑level riverboat dockside casino complex situated on the Red River in Shreveport, Louisiana, which commenced operations under its previous owners in December 2000. Prior to the Reno Acquisition Date, Resorts owned a 48.1% interest in the joint venture (the “Silver Legacy Joint Venture”) which owns the Silver Legacy Resort Casino (the “Silver Legacy”), a major themed hotel and casino situated between and seamlessly connected at the mezzanine level to the Eldorado Reno and Circus Reno hotel and casino. Resorts acquired the remaining interest in Silver Legacy in 2015 as well as acquiring Circus Reno, previously owned and operated by Galleon, Inc., an indirect, wholly-owned subsidiary of MGM Resorts International. Resorts previously owned a 21.3% interest in Tamarack Crossing, LLC (“Tamarack”), a Nevada limited liability company that owned and operated Tamarack Junction, a casino in south Reno which commenced operations on September 4, 2001. On September 1, 2014, and as a condition to closing the MTR Merger, Resorts distributed to HoldCo, and HoldCo subsequently distributed to its members, including members of the Carano family, on a pro rata basis Resorts’ interest in Tamarack. No gain or loss was recognized in the accompanying consolidated financial statements as a result of such distribution because the distribution was in the amount of the book value of Tamarack and totaled $5.5 million. MTR Gaming operates as a hospitality and gaming company with racetrack, gaming and hotel properties in West Virginia, Pennsylvania and Ohio. MTR Gaming, through its wholly-owned subsidiaries, owns and operates Mountaineer Casino, Racetrack & Resort in Chester, West Virginia (“Mountaineer”), Presque Isle Downs & Casino in Erie, Pennsylvania (“Presque Isle Downs”), and Scioto Downs in Columbus, Ohio. Scioto Downs, through its subsidiary, RacelineBet, Inc., also operates Racelinebet.com, a national account wagering service that offers online and telephone wagering on horse races as a marketing affiliate of TwinSpires.com, an affiliate of Churchill Downs, Inc. Agreement to Acquire Isle of Capri Casinos, Inc. On September 19, 2016, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Isle of Capri Casinos, Inc., a Delaware corporation (“Isle” or “Isle of Capri”), Eagle I Acquisition Corp., a Delaware corporation and a direct wholly-owned subsidiary of the Company (“Merger Sub A”), and Eagle II Acquisition Company LLC, a Delaware limited liability company and a direct wholly-owned subsidiary of the Company (“Merger Sub B”). The Merger Agreement provides for, among other things, (1) the merger of Merger Sub A with and into Isle, with Isle as the surviving entity (the “First Step Merger”), and (2) a subsequent merger whereby Isle will merge with and into Merger Sub B, with Merger Sub B as the surviving entity (the “Second Step Merger” and together with the First Step Merger, the “Mergers”). Isle’s stockholders may elect to exchange each share of Isle common stock held by such stockholder, at the effective time of the First Step Merger, for either $23.00 in cash or 1.638 shares of Company common stock. Elections are subject to proration and reallocation such that the outstanding shares of Isle common stock will be exchanged for aggregate consideration comprised of 58% cash and 42% Company common stock. The consummation of the merger is subject to receipt of approval of applicable gaming authorities and other customary closing conditions, and is expected to be consummated in the second quarter of 2017. The waiting period under the Hart-Scott-Rodino Act terminated on October 21, 2016. The Company and Isle of Capri received approval of each of their respective stockholders on January 25, 2017 at separate special meetings of stockholders. The obligation of the Company to consummate the Mergers is subject to the absence of a material adverse effect on Isle and the obligation of Isle to consummate the Mergers is subject to the absence of a material adverse effect on the Company. The obligation of the Company to consummate the Mergers is not subject to a financing condition. Additionally, the Merger Agreement contains certain termination rights for both the Company and Isle including, among others, a mutual termination right if the Mergers have not been consummated on or prior to June 19, 2017 (which may be extended for an additional 90 days by either the Company or Isle if all of the conditions precedent other than the receipt of required gaming approvals have been satisfied). Upon the termination of the Merger Agreement under certain circumstances, the Company or Isle may be required to pay a termination fee of $60.0 million or $30.0 million, respectively. The foregoing description of the Merger Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Merger Agreement. In connection with the execution of the Merger Agreement, on September 19, 2016, Recreational Enterprises, Inc. (“REI”), the Company and Isle entered into a voting agreement and GFIL Holdings, LLC (“GFIL”), the Company and Isle entered into a voting agreement pursuant to which, REI has agreed, among other things, to vote all of its shares of Company common stock in favor of the issuance of shares of Company common stock as stock consideration in the Mergers and GFIL has agreed, among other things, to vote all of its shares of Isle common stock in favor of the Mergers and adoption of the Merger Agreement. Upon completion of the Mergers, the Company will add 12 additional properties to its portfolio after giving effect to the planned dispositions of Isle of Capri Casino Hotel Lake Charles and Lady Luck Casino Marquette. On August 22, 2016, Isle entered into an agreement to sell Isle of Capri Casino Hotel Lake Charles for aggregate consideration of $134.5 million, subject to certain adjustments. On October 13, 2016, Isle entered into an agreement to sell Lady Luck Casino Marquette for cash consideration of approximately $40.0 million, subject to certain adjustments. Acquisition charges totaling $8.5 million, attributed to the Isle Acquisition, are reported on the accompanying statement of operations related to legal, accounting, financial advisory services and other costs during the year ended December 31, 2016. In connection with entering into the Merger Agreement, on September 19, 2016, the Company entered into a debt financing commitment letter with JPMorgan Chase Bank, N.A. as modified by the five separate written joinders to the Commitment Letter entered into by ERI and JPMorgan Chase Bank, N.A. with each of Macquarie Capital Funding LLC, KeyBank, National Association, Capital One, National Association, SunTrust Bank and U.S. Bank National Association and certain affiliates of such parties (the “Commitment Letter”). The Commitment Letter provides for: (a) a senior secured credit facility in an aggregate principal amount of $1.75 billion comprised of (i) a term loan facility of up to $1.45 billion and (ii) a revolving credit facility of $300.0 million and (b) an amount equal to at least $375.0 million in gross proceeds from the issuance and sale by the Company of senior unsecured notes or, if the notes are not issued and sold on or prior to the date of the consummation of the Mergers, an amount equal to at least $375.0 million in senior unsecured bridge loans under a senior unsecured credit facility. The proceeds of such borrowings may be used (w) to pay consideration in the Mergers, (x) refinance all of Isle’s existing credit facilities and senior and senior subordinated notes, (y) refinance the Company’s existing credit facility and (z) pay transaction fees and expenses related to the foregoing. The availability of the borrowings is subject to the satisfaction of certain customary conditions.

Note 1. Organization and Basis of Presentation

The accompanying consolidated financial statements include the accounts of Eldorado Resorts, Inc. (“ERI” or the “Company”), a Nevada corporation formed in September 2013, and its consolidated subsidiaries. As explained in greater detail in Note 3, ERI was formed in September 2013 to be the parent company following the merger of wholly-owned subsidiaries of the Company into Eldorado HoldCo LLC (“HoldCo”), a Nevada limited liability company formed in 2009 that is the parent company of Eldorado Resorts LLC (“Resorts”), and MTR Gaming Group, Inc. (“MTR Gaming”), a Delaware corporation incorporated in 1988 (the “MTR Merger”). Effective upon the consummation of the MTR Merger on September 19, 2014 (the “MTR Merger Date”), MTR Gaming and HoldCo each became a wholly-owned subsidiary of ERI and, as a result of such transactions, Resorts became an indirect wholly-owned subsidiary of ERI. The MTR Merger has been accounted for as a reverse acquisition of MTR Gaming by HoldCo under accounting principles generally accepted in the United States (“US GAAP”). As a result, HoldCo is considered the acquirer of MTR Gaming for accounting purposes. The accompanying consolidated financial statements for periods prior to the MTR Merger Date are those of HoldCo and its subsidiaries, and for periods subsequent to the MTR Merger Date also include MTR Gaming and its subsidiaries. Intercompany accounts and transactions have been eliminated in consolidation.

On November 24, 2015 (the “Reno Acquisition Date”), Resorts consummated the acquisition of all of the assets and properties of Circus Circus Reno (“Circus Reno”) and the 50% membership interest in the Silver Legacy Joint Venture owned by Galleon, Inc. (collectively, the “Circus Reno/Silver Legacy Purchase” or the “Reno Acquisition”) pursuant to a Purchase and Sale Agreement, dated as of July 7, 2015 (the “Purchase Agreement”), entered into with Circus Circus Casinos, Inc. and Galleon, Inc., each an affiliate of MGM Resorts International, with respect to the acquisition. On the Reno Acquisition Date, Eldorado Resorts LLC also exercised its right to acquire the 3.8% interest in Eldorado Limited Liability Company (“ELLC”) held by certain affiliates and stockholders of the Company. As a result of these transactions, ELLC and CC-Reno, LLC, a newly formed Nevada limited liability company, became wholly-owned subsidiaries of ERI, and Silver Legacy became an indirect wholly‑owned subsidiary of ERI. The accompanying consolidated financial statements for periods prior to the Reno Acquisition Date do not include the results of operations for Circus Reno and account for Silver Legacy as an investment in unconsolidated affiliate.

Resorts owns and operates the Eldorado Resorts Casino Reno, a premier hotel, casino and entertainment facility centrally located in downtown Reno, Nevada (the “Eldorado Reno”), which opened for business in 1973. Resorts also owns Eldorado Resort Casino Shreveport (“Eldorado Shreveport”), a 403‑room all suite art deco‑style hotel and a tri‑level riverboat dockside casino complex situated on the Red River in Shreveport, Louisiana, which commenced operations under its previous owners in December 2000.

Prior to the Reno Acquisition Date, Resorts owned a 48.1% interest in the joint venture (the “Silver Legacy Joint Venture”) which owns the Silver Legacy Resort Casino (the “Silver Legacy”), a major themed hotel and casino situated between and seamlessly connected at the mezzanine level to the Eldorado Reno and Circus Reno hotel and casino. Resorts acquired the remaining interest in Silver Legacy in 2015 as well as acquiring Circus Reno, previously owned and operated by Galleon, Inc., an indirect, wholly-owned subsidiary of MGM Resorts International.

Resorts previously owned a 21.3% interest in Tamarack Crossing, LLC (“Tamarack”), a Nevada limited liability company that owned and operated Tamarack Junction, a casino in south Reno which commenced operations on September 4, 2001. On September 1, 2014, and as a condition to closing the MTR Merger, Resorts distributed to HoldCo, and HoldCo subsequently distributed to its members, including members of the Carano family, on a pro rata basis Resorts’ interest in Tamarack. No gain or loss was recognized in the accompanying consolidated financial statements as a result of such distribution because the distribution was in the amount of the book value of Tamarack and totaled $5.5 million.

MTR Gaming operates as a hospitality and gaming company with racetrack, gaming and hotel properties in West Virginia, Pennsylvania and Ohio. MTR Gaming, through its wholly-owned subsidiaries, owns and operates Mountaineer Casino, Racetrack & Resort in Chester, West Virginia (“Mountaineer”), Presque Isle Downs & Casino in Erie, Pennsylvania (“Presque Isle Downs”), and Scioto Downs in Columbus, Ohio. Scioto Downs, through its subsidiary, RacelineBet, Inc., also operates Racelinebet.com, a national account wagering service that offers online and telephone wagering on horse races as a marketing affiliate of TwinSpires.com, an affiliate of Churchill Downs, Inc.

Agreement to Acquire Isle of Capri Casinos, Inc.

On September 19, 2016, the Company entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Isle of Capri Casinos, Inc., a Delaware corporation (“Isle” or “Isle of Capri”), Eagle I Acquisition Corp., a Delaware corporation and a direct wholly-owned subsidiary of the Company (“Merger Sub A”), and Eagle II Acquisition Company LLC, a Delaware limited liability company and a direct wholly-owned subsidiary of the Company (“Merger Sub B”). The Merger Agreement provides for, among other things, (1) the merger of Merger Sub A with and into Isle, with Isle as the surviving entity (the “First Step Merger”), and (2) a subsequent merger whereby Isle will merge with and into Merger Sub B, with Merger Sub B as the surviving entity (the “Second Step Merger” and together with the First Step Merger, the “Mergers”). Isle’s stockholders may elect to exchange each share of Isle common stock held by such stockholder, at the effective time of the First Step Merger, for either $23.00 in cash or 1.638 shares of Company common stock. Elections are subject to proration and reallocation such that the outstanding shares of Isle common stock will be exchanged for aggregate consideration comprised of 58% cash and 42% Company common stock. The consummation of the merger is subject to receipt of approval of applicable gaming authorities and other customary closing conditions, and is expected to be consummated in the second quarter of 2017. The waiting period under the Hart-Scott-Rodino Act terminated on October 21, 2016. The Company and Isle of Capri received approval of each of their respective stockholders on January 25, 2017 at separate special meetings of stockholders. The obligation of the Company to consummate the Mergers is subject to the absence of a material adverse effect on Isle and the obligation of Isle to consummate the Mergers is subject to the absence of a material adverse effect on the Company. The obligation of the Company to consummate the Mergers is not subject to a financing condition.

Additionally, the Merger Agreement contains certain termination rights for both the Company and Isle including, among others, a mutual termination right if the Mergers have not been consummated on or prior to June 19, 2017 (which may be extended for an additional 90 days by either the Company or Isle if all of the conditions precedent other than the receipt of required gaming approvals have been satisfied). Upon the termination of the Merger Agreement under certain circumstances, the Company or Isle may be required to pay a termination fee of $60.0 million or $30.0 million, respectively. The foregoing description of the Merger Agreement does not purport to be complete and is qualified in its entirety by reference to the full text of the Merger Agreement.

In connection with the execution of the Merger Agreement, on September 19, 2016, Recreational Enterprises, Inc. (“REI”), the Company and Isle entered into a voting agreement and GFIL Holdings, LLC (“GFIL”), the Company and Isle entered into a voting agreement pursuant to which, REI has agreed, among other things, to vote all of its shares of Company common stock in favor of the issuance of shares of Company common stock as stock consideration in the Mergers and GFIL has agreed, among other things, to vote all of its shares of Isle common stock in favor of the Mergers and adoption of the Merger Agreement.

Upon completion of the Mergers, the Company will add 12 additional properties to its portfolio after giving effect to the planned dispositions of Isle of Capri Casino Hotel Lake Charles and Lady Luck Casino Marquette. On August 22, 2016, Isle entered into an agreement to sell Isle of Capri Casino Hotel Lake Charles for aggregate consideration of $134.5 million, subject to certain adjustments. On October 13, 2016, Isle entered into an agreement to sell Lady Luck Casino Marquette for cash consideration of approximately $40.0 million, subject to certain adjustments.

Acquisition charges totaling $8.5 million, attributed to the Isle Acquisition, are reported on the accompanying statement of operations related to legal, accounting, financial advisory services and other costs during the year ended December 31, 2016.

In connection with entering into the Merger Agreement, on September 19, 2016, the Company entered into a debt financing commitment letter with JPMorgan Chase Bank, N.A. as modified by the five separate written joinders to the Commitment Letter entered into by ERI and JPMorgan Chase Bank, N.A. with each of Macquarie Capital Funding LLC, KeyBank, National Association, Capital One, National Association, SunTrust Bank and U.S. Bank National Association and certain affiliates of such parties (the “Commitment Letter”). The Commitment Letter provides for: (a) a senior secured credit facility in an aggregate principal amount of $1.75 billion comprised of (i) a term loan facility of up to $1.45 billion and (ii) a revolving credit facility of $300.0 million and (b) an amount equal to at least $375.0 million in gross proceeds from the issuance and sale by the Company of senior unsecured notes or, if the notes are not issued and sold on or prior to the date of the consummation of the Mergers, an amount equal to at least $375.0 million in senior unsecured bridge loans under a senior unsecured credit facility. The proceeds of such borrowings may be used (w) to pay consideration in the Mergers, (x) refinance all of Isle’s existing credit facilities and senior and senior subordinated notes, (y) refinance the Company’s existing credit facility and (z) pay transaction fees and expenses related to the foregoing. The availability of the borrowings is subject to the satisfaction of certain customary conditions.