Financial Derivatives - Additional Information (Details) - USD ($) $ in Millions			12 Months Ended
	Mar. 31, 2017	Mar. 28, 2013	Sep. 30, 2017	Sep. 30, 2015
Derivative, Notional Amount		$ 213.8		$ 185.6
Derivative Amortizes Amount		$ 2.8
Derivative, Fair Value, Net				$ 2.4
Unrealized Gain (Loss) on Derivatives	$ 2.4
Interest Rate Swap Fixed Rate Of One Point Three Eight Percent [Member]
Derivative, Maturity Date			Mar. 31, 2017
Derivative, Fixed Interest Rate			1.38%
Derivative Amortization Frequency			quarter