Summary of Significant Accounting Policies (Equipment under Capital Leases) (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Mar. 31, 2015
Capital Leased Assets [Line Items]
Equipment	$ 35,581	$ 41,160
Less: accumulated depreciation and amortization	(18,577)	(19,937)
Net property and equipment	17,004	21,223
Assets Held under Capital Leases
Capital Leased Assets [Line Items]
Equipment	408	0
Less: accumulated depreciation and amortization	(65)	0
Net property and equipment	$ 343	$ 0