Derivatives Instrument and Hedging Activities (BalSheet) (Details) - USD ($)	3 Months Ended	12 Months Ended
	Mar. 31, 2016	Dec. 31, 2015
Fair Value
Derivative liability	$ 5,145,000	$ 735,000
Tax benefit on unrealized loss on derivatives	5,100,000
Designated as Hedging Instrument | Interest Rate Swap
Fair Value
Derivative liability	5,145,000	735,000
Tax benefit on unrealized loss on derivatives	$ 1,700,000	$ 93,000