Number of screens in operation by the entity as of the balance sheet date.

No definition available.

Name:	rgc_NumberOfScreensInOperation
Namespace Prefix:	rgc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Number of theatres in operation by the entity as of the balance sheet date.

+ References

No definition available.

+ Details

Name:	rgc_NumberOfTheatresInOperation
Namespace Prefix:	rgc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266

+ Details

Name:	us-gaap_Goodwill
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- 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

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

- Definition

Amount of increase (decrease) of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

+ Details

Name:	us-gaap_GoodwillPeriodIncreaseDecrease
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_BusinessAcquisitionAxis=rgc_GeorgiaTheatresMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES (Goodwill) (Details) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) screen theatre	Sep. 03, 2015 USD ($) screen theatre	Jan. 01, 2015 USD ($)
Goodwill [Line Items]
Goodwill	$ 328.7		$ 320.4
Number of theatres in operation \| theatre	572
Number of screens in operation \| screen	7,361
Georgia Theatres
Goodwill [Line Items]
Goodwill		$ 8.3
Goodwill increase	$ 8.3
Number of theatres in operation \| theatre		5
Number of screens in operation \| screen		61