Long-term Debt and Line of Credit - Financial Covenants (Details)	3 Months Ended				5 Months Ended	6 Months Ended	40 Months Ended
	Dec. 31, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2017	Aug. 05, 2020	Aug. 05, 2015
Debt Instrument [Line Items]
Debt instrument, covenant, fixed charge coverage ratio, maximum								1.25
Debt instrument, covenant, leverage ratio, maximum				3.00	3.25
Scenario, Forecast
Debt Instrument [Line Items]
Debt instrument, covenant, leverage ratio, maximum	3.75	4.00	2.75			2.50	3.25