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Legal Proceedings (Details) - USD ($) $ in Millions	May 22, 2017	Aug. 04, 2015	Jun. 30, 2011	May 22, 2018
Liability for Uncollected Sales Taxes, with Interest and Penalties | Georgia Department of Revenue
Loss Contingencies [Line Items]
Assessed sales tax liability	$ 2.6	$ 96.1	$ 73.8
Sparta Implied Covenant Counterclaim Loss Contingency [Member] | Subsequent Event [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss				$ 4.9

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- Definition

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+ 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
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- Definition

Reflects the estimated amount of loss from the specified contingency as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-SubTopic 20
-Section 50
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