Supplemental Cash Flow Information (Noncash Investing Activities) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Dec. 31, 2013 FY14 Acquisitions [Member]		Dec. 31, 2012 FY13 Acquisitions [Member]
Noncash or Part Noncash Acquisitions [Line Items]
Fair value of assets acquired	$ 191,589		$ 114,007
Net cash paid for acquisitions	(181,131)	[1]	(94,630)	[1]
Liabilities assumed	$ 10,458		$ 19,377

[1] Includes the purchase of businesses and the settlement of holdback liabilities and payments related to contingent consideration arrangements associated with prior year acquisitions.