Consolidating Condensed Financial Information - Consolidating Condensed Statement of Cash Flows (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018	Dec. 31, 2018
Condensed Statement of Cash Flows
Net cash provided by (used in) operating activities	$ 65,440	$ 78,007
INVESTING ACTIVITIES:
Purchase of property and equipment, net	(38,360)	(21,271)
Proceeds from sale of property and equipment, net of cash sold	167,945	150
Purchase of restricted investments	(80)
Net cash provided by (used in) investing activities	129,505	(21,121)
FINANCING ACTIVITIES:
Payments under Revolving Credit Facility	(205,000)
Payments on other long-term payables	(118)	(170)
Debt issuance costs	(386)	(304)
Taxes paid related to net share settlement of equity awards	(4,322)	(7,502)
Net cash used in financing activities	(209,826)	(7,976)
(Decrease) Increase in cash, cash equivalents and restricted cash	(14,881)	48,910
Cash, cash equivalents and restricted cash, beginning of period	246,691	147,749
Cash, cash equivalents and restricted cash, end of period	231,810	196,659
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH TO AMOUNTS REPORTED WITHIN THE CONDENSED CONSOLIDATED BALANCE SHEETS:
Cash and cash equivalents	216,883	183,138	$ 230,752
Restricted cash	7,892	3,659
Restricted and escrow cash included in other noncurrent assets	7,035	9,862
Restricted cash included in other noncurrent assets		9,862
Cash, cash equivalents and restricted cash, end of period	231,810	196,659
Reportable Legal Entities | Eldorado Resorts, Inc. (Parent Obligor)
Condensed Statement of Cash Flows
Net cash provided by (used in) operating activities	13,524	(7,128)
INVESTING ACTIVITIES:
Purchase of property and equipment, net	(1,154)	(1,233)
Proceeds from sale of property and equipment, net of cash sold	550
Net cash provided by (used in) investing activities	(604)	(1,233)
FINANCING ACTIVITIES:
Payments under Revolving Credit Facility	(205,000)
Net proceeds from (payments to) related parties	221,599	62,560
Payments on other long-term payables	(23)	(22)
Debt issuance costs	(386)	(304)
Taxes paid related to net share settlement of equity awards	(4,322)	(7,502)
Net cash used in financing activities	11,868	54,732
(Decrease) Increase in cash, cash equivalents and restricted cash	24,788	46,371
Cash, cash equivalents and restricted cash, beginning of period	12,844	13,836
Cash, cash equivalents and restricted cash, end of period	37,632	60,207
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH TO AMOUNTS REPORTED WITHIN THE CONDENSED CONSOLIDATED BALANCE SHEETS:
Cash and cash equivalents	37,632	59,490
Restricted cash		717
Cash, cash equivalents and restricted cash, end of period	37,632	60,207
Reportable Legal Entities | Guarantor Subsidiaries
Condensed Statement of Cash Flows
Net cash provided by (used in) operating activities	53,239	87,253
INVESTING ACTIVITIES:
Purchase of property and equipment, net	(37,198)	(19,011)
Proceeds from sale of property and equipment, net of cash sold	168,997	150
Net cash provided by (used in) investing activities	131,799	(18,861)
FINANCING ACTIVITIES:
Net proceeds from (payments to) related parties	(223,672)	(66,660)
Payments on other long-term payables	(12)	(78)
Net cash used in financing activities	(223,684)	(66,738)
(Decrease) Increase in cash, cash equivalents and restricted cash	(38,646)	1,654
Cash, cash equivalents and restricted cash, beginning of period	222,672	118,483
Cash, cash equivalents and restricted cash, end of period	184,026	120,137
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH TO AMOUNTS REPORTED WITHIN THE CONDENSED CONSOLIDATED BALANCE SHEETS:
Cash and cash equivalents	170,099	116,394
Restricted cash	7,892	2,743
Restricted and escrow cash included in other noncurrent assets	6,035
Restricted cash included in other noncurrent assets		1,000
Cash, cash equivalents and restricted cash, end of period	184,026	120,137
Reportable Legal Entities | Non-Guarantor Subsidiaries
Condensed Statement of Cash Flows
Net cash provided by (used in) operating activities	(1,323)	(2,118)
INVESTING ACTIVITIES:
Purchase of property and equipment, net	(8)	(1,027)
Proceeds from sale of property and equipment, net of cash sold	(1,602)
Purchase of restricted investments	(80)
Net cash provided by (used in) investing activities	(1,690)	(1,027)
FINANCING ACTIVITIES:
Net proceeds from (payments to) related parties	2,073	4,100
Payments on other long-term payables	(83)	(70)
Net cash used in financing activities	1,990	4,030
(Decrease) Increase in cash, cash equivalents and restricted cash	(1,023)	885
Cash, cash equivalents and restricted cash, beginning of period	11,175	15,430
Cash, cash equivalents and restricted cash, end of period	10,152	16,315
RECONCILIATION OF CASH, CASH EQUIVALENTS AND RESTRICTED CASH TO AMOUNTS REPORTED WITHIN THE CONDENSED CONSOLIDATED BALANCE SHEETS:
Cash and cash equivalents	9,152	7,254
Restricted cash		199
Restricted and escrow cash included in other noncurrent assets	1,000
Restricted cash included in other noncurrent assets		8,862
Cash, cash equivalents and restricted cash, end of period	$ 10,152	$ 16,315