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Legal Proceedings (Details) - USD ($) $ in Millions	May 22, 2017	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	$ 73.8
Sparta Implied Covenant Counterclaim Loss Contingency [Member]
Loss Contingencies [Line Items]
Loss Contingency, Estimate of Possible Loss			$ 4.9

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

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

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