Schedule II Regal Beloit Corporation Valuation And Qualifying Accounts (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 03, 2015	Dec. 28, 2013	Dec. 29, 2012
Allowance For Receivables [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Year	$ 11.5	$ 10.2	$ 13.6
Charged to Expenses	19.5	2.7	(1.3)
Deductions	(19.2)	(1.9)	(2.5)
Adjustments	(0.2)	0.5	0.4
Balance End of Year	11.6	11.5	10.2
Allowance For Product Warranty Reserves [Member]
Valuation and Qualifying Accounts Disclosure [Line Items]
Balance Beginning of Year	19.3	20.9	24.2
Charged to Expenses	19.6	16.5	30.0
Deductions	(20.2)	(19.4)	(33.4)
Adjustments	0.6	1.3	0.1
Balance End of Year	$ 19.3	$ 19.3	$ 20.9

Total of the adjustments in a given period to allowances and reserves, the valuation and qualifying accounts that are either netted against the cost of an asset (in order to value it at its carrying value) or that reflect a liability.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 4

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e24092-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 09

-Article 12

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