Fair Value Measurements (Schedule Of Non-Recurring Losses Recognized Using Fair Value Measurements And The Carrying Value Of Any Assets And Liabilities Measured Using Fair Value Estimates) (Details) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Assets
Assets, carrying value	$ 4,675	$ 24,814
Assets, non-recurring losses (gains)	0	0
Vacant Owned Facilities
Assets
Assets, carrying value	3,866	2,727
Assets, non-recurring losses (gains)	0	0
Net Assets Of Acquired Businesses
Assets
Assets, carrying value	809	22,087
Assets, non-recurring losses (gains)	$ 0	$ 0