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