Other Assets (Composition Of Other Assets) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Mar. 31, 2014
Other Assets, Unclassified [Abstract]
Deferred financing costs, net of accumulated amortization	$ 31,048	$ 34,722
Prepaid expenses and other	37,470	33,347
Finite-lived intangible assets	2,092	2,998
Total other assets	$ 70,610	$ 71,067