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Represents the minimum interest coverage ratio requirement under debt covenant.

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Represents the leverage ratio calculated as of the reporting period date.

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Represents the maximum leverage ratio requirement under financial covenant.

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Represents the minimum net worth requirement under financial covenant.

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Represents the actual percentage of EBITDA accounted for by the parent and subsidiary guarantors as of the reporting period date.

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Represents the minimum percentage of consolidated earnings before interest, taxes, depreciation and amortization (EBITDA), which the subsidiary guarantors together with the entity are required to maintain.

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Represents the percentage of consolidated tangible assets which the subsidiary guarantors together with the entity are required to own under the terms of the financial covenants.

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Represents the percentage of consolidated tangible assets which the subsidiary guarantors together with the entity required to own under the terms of the financial covenants.

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Represents the number of tranches comprising the debt issuance.

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Represents the redemption price as a percentage of the principal amount at which the debt instrument may be required to be redeemed by the entity in the event of a change of control or downgrade of the entity's credit rating.

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Represents the weighted average remaining life of debt.

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The total additional amount of letters of credit available to be issued as of the reporting date.

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Represents the number of banks as lenders of the line of credit facility.

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Represents period of extended term of existing syndicated credit agreement.

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The percentage points added to the reference rate to compute the variable rate on the debt instrument.

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Increase for additional borrowings on the debt instrument during the period.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Article 4

-Section 08

-Paragraph f

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

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Interest rate stated in the contractual debt agreement.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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-Paragraph 1

-Subparagraph (SX 210.5-02.22(a)(1))

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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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.

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Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of debt outstanding by type or by instrument at that time.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount borrowed under the credit facility as of the balance sheet date.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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

-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 129

-Paragraph 2, 4

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Subparagraph (SX 210.5-02.19(b),22(b))

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The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

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Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity.

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.29-31)

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-Name Accounting Research Bulletin (ARB)

-Number 51

-Paragraph A3

-Appendix A

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-Paragraph 29, 30, 31

-Article 5

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-Name Staff Accounting Bulletin (SAB)

-Number Topic 4

-Section E

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-Name Accounting Standards Codification

-Topic 310

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-Section S99

-Paragraph 2

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Debt (Details 2) (USD $) In Millions, unless otherwise specified	1 Months Ended							1 Months Ended	9 Months Ended			1 Months Ended	9 Months Ended	1 Months Ended		1 Months Ended
	Jul. 31, 2011 year	Sep. 30, 2011	Dec. 31, 2010	Jul. 26, 2011 Unsecured revolving credit facility	Dec. 31, 2010 Unsecured revolving credit facility	Sep. 30, 2011 Unsecured revolving credit facility LIBOR	Sep. 30, 2011 Unsecured revolving credit facility Bank prime rate	Jul. 31, 2011 Unsecured revolving credit facility Amendment of credit agreement entity	Sep. 30, 2011 Unsecured revolving credit facility Amendment of credit agreement	Jul. 26, 2011 Unsecured revolving credit facility Amendment of credit agreement	Sep. 30, 2011 Senior unsecured notes due from July 1, 2011 to July 2, 2013. year	Nov. 30, 2006 Senior Unsecured Notes - Publicly Traded Tranche	Sep. 30, 2011 Senior Unsecured Notes - Publicly Traded	Nov. 30, 2006 Senior unsecured notes due November 15, 2016	Sep. 30, 2011 Senior unsecured notes due November 15, 2016	Nov. 30, 2006 Senior unsecured notes due November 15, 2036	Sep. 30, 2011 Senior unsecured notes due November 15, 2036	Sep. 30, 2011 Revolving Credit Facilities - Foreign Operations	Dec. 31, 2010 Revolving Credit Facilities - Foreign Operations	Sep. 30, 2011 Unsecured Revolving Credit Facility and Senior Unsecured Notes
Debt
Borrowing capacity under revolving credit facility				$ 1,100.0						$ 1,500.0								$ 24.0
Period of extended term of existing syndicated credit agreement (in years)	5
Number of banks as lenders								26
Interest rate added to base (as a percent)						1.50%	0.50%
Commitment fee on unused portion of revolving credit facility (as a percent)									0.25%
Weighted average fixed rate (as a percent)					3.54%				1.74%		5.35%
Letters of credit outstanding									41.3
Additional amount of letters of credit available to be issued									208.7
Combined outstanding balances of revolving credit facilities																		13.7	11.8
Weighted average remaining life (in years)											1.8
Issuance of debt												600		350		250
Number of tranches comprising the debt issuance												2
Interest rate (as a percent)															6.20%		6.85%
Percentage of principal amount at which the notes may be required to be repurchased in event of a change of control and a downgrade of the entity's credit rating (as a percent)													101.00%
Interest coverage ratio, actual (as a percent)																				8.8
Minimum interest coverage ratio required, debt covenant (as a percent)																				3.0
Leverage ratio, actual (as a percent)																				33.00%
Maximum leverage ratio required under financial covenant (as a percent)																				60.00%
Minimum net worth requirement																				999.2
Reliance shareholders' equity		$ 3,084.7	$ 2,823.7																	$ 3,080.0
Minimum percentage of consolidated EBITDA required for the entity and subsidiary guarantors (as a percent)																				80.00%
Minimum percentage of consolidated tangible assets required for the entity and subsidiary guarantors (as a percent)																				80.00%
Actual percentage of total consolidated EBITDA for the parent and subsidiary guarantors (as a percent)																				86.00%
Actual percentage of consolidated tangible assets owned by the entity and subsidiary guarantors (as a percent)																				89.00%