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Legal Proceedings (Details) - USD ($) $ in Millions	Aug. 04, 2015	Jun. 22, 2015	Jun. 05, 2015	Jun. 30, 2011
Liability for Uncollected Sales Taxes, with Interest and Penalties [Member] [Member] | Georgia Department of Revenue [Member]
Loss Contingencies [Line Items]
Assessed sales tax liability	$ 96.1	$ 100.0	$ 2.7	$ 73.8

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- 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.

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- Definition

The value (monetary amount) of the award the plaintiff seeks in the legal matter.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14326-108349

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 9
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-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14557-108349

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-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=25496072&loc=d3e14435-108349

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