Debt (Financing Obligation) (Details) - Financing Obligation [Member] $ in Thousands	3 Months Ended
	Jun. 30, 2018 USD ($) options Rate
Capital Lease Obligations
Capital lease term of contract (in years)	15 years
Capital lease number of renewal options | options	4
Capital lease term of renewal (in years)	5 years
Annual base rent	$ 1,638
Annual interest rate escalations (as a percent) | Rate	3.00%
Effective interest rate (as a percent) | Rate	7.89%
Capital Leases, Future Payments
Capital Leases, Future Minimum Payments Due, Next Twelve Months	$ 1,699
Capital Leases, Future Minimum Payments Due in Two Years	1,750
Capital Leases, Future Minimum Payments Due in Three Years	1,803
Capital Leases, Future Minimum Payments Due in Four Years	1,857
Capital Leases, Future Minimum Payments Due in Five Years	1,913
Capital Leases, Future Minimum Payments Due Thereafter	19,375
Capital Leases, Future Minimum Payments Due	$ 28,397