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Employee Retirement and Benefit Plans - Schedule of Contributions to Each Multiemployer Pension Plans (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Multiemployer Pension Plans [Member]
Multiemployer Plans [Line Items]
Total Contributions	$ 2,947	$ 663
Multiemployer Pension Plans [Member] | Central Pension Fund of the IUOE and Participating Employers [Member]
Multiemployer Plans [Line Items]
Total Contributions	753	165
Multiemployer Pension Plans [Member] | Southern Nevada Culinary and Bartenders Pension Plan [Member]
Multiemployer Plans [Line Items]
Total Contributions	2,003	453
Multiemployer Pension Plans [Member] | Other Pension Plans [Member]
Multiemployer Plans [Line Items]
Total Contributions	191	45
Multiemployer benefit plans (excluding pension plans) [Member]
Multiemployer Plans [Line Items]
Total Contributions	7,813	1,693
Multiemployer benefit plans (excluding pension plans) [Member] | HEREIU Welfare Fund [Member]
Multiemployer Plans [Line Items]
Total Contributions	7,807	1,691
Multiemployer benefit plans (excluding pension plans) [Member] | All Other [Member]
Multiemployer Plans [Line Items]
Total Contributions	$ 6	$ 2

X

- Definition

Amount of contributions made to multiemployer plan by employer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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