RELATED PARTY TRANSACTIONS (Details) - Anschutz affiliates - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2015	Jan. 01, 2015	Dec. 26, 2013
Related party transactions
Revenues earned under ESA	$ 0.5	$ 0.5	$ 0.5
Regal Cinemas Corporation ("Regal Cinemas")
Related party transactions
Advertising, monitoring services and other expenses	0.1
Revenues earned under ESA	0.1	0.1	0.1
Value of advertising services received in exchange for services provided to related party	0.1	0.1	0.1
Regal Cinemas Corporation ("Regal Cinemas") \| Less than
Related party transactions
Advertising, monitoring services and other expenses	$ 0.1	$ 0.1	$ 0.1

Represents the value of services received in a noncash exchange with a related party.

No definition available.

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Namespace Prefix:	rgc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Expenses recognized resulting from transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 850
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- 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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Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Reflects the sum of all other revenue and income realized from sales and other transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

+ References

No definition available.

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Details

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Namespace Prefix:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: