Derivative Financial Instruments Effectiveness Testing (Details) (Interest rate swap agreements [Member], USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Mar. 31, 2016
Gain/(loss) reclassified from accumulated other comprehensive income/(loss) into earnings due to ineffectiveness	$ 0	$ 0
Existing net losses realized and recorded as interest expense	800,000	400,000
Scenario, Forecast [Member]
Existing net losses expected to be realized within the next 12 months			$ 2,200,000