Debt (ABL Facility) (Details) (ABL Credit Facility [Member], USD $) In Thousands, unless otherwise specified	0 Months Ended
Jul. 08, 2011
Line of Credit Facility [Line Items]
Maximum borrowing capacity under credit facility	600,000
Fixed charge coverage ratio	1.1
Less than outstanding commitments	15.00%
Alternative A [Member] \| Maximum [Member] \| Libor [Member]
Line of Credit Facility [Line Items]
Basis spread on debt instrument	3.25%
Alternative A [Member] \| Minimum [Member] \| Libor [Member]
Line of Credit Facility [Line Items]
Basis spread on debt instrument	2.75%
Alternative B [Member] \| Maximum [Member] \| Libor [Member]
Line of Credit Facility [Line Items]
Basis spread on debt instrument	1.75%
Alternative B [Member] \| Minimum [Member] \| Libor [Member]
Line of Credit Facility [Line Items]
Basis spread on debt instrument	1.25%
Alternative B [Member] \| Federal Funds [Member]
Line of Credit Facility [Line Items]
Basis spread on debt instrument	0.50%
Maximum [Member]
Line of Credit Facility [Line Items]
Commitment fee percentage	0.65%
Commitments that exceed utilization	50.00%
Minimum [Member]
Line of Credit Facility [Line Items]
Commitment fee percentage	0.50%
Commitments that exceed utilization	50.00%

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.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009.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.

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

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

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

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant