Fair Value Of Financial Assets And Liabilities (Assets And Liabilities Measured At Fair Value On A Recurring Basis) (Details) (Fair Value, Measurements, Recurring [Member], USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Mar. 31, 2014
Estimate of Fair Value, Fair Value Disclosure [Member]
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	$ 17,472	$ 16,387
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	17,472	16,387
Contingent consideration liabilities		323
Total liabilities measured at fair value on a recurring basis		16,710
Quoted Prices In Active Markets Level 1 [Member]
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	17,472	16,387
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	17,472	16,387
Contingent consideration liabilities		0
Total liabilities measured at fair value on a recurring basis		16,387
Significant Other Observable Inputs Level 2 [Member]
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	0	0
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	0	0
Contingent consideration liabilities		0
Total liabilities measured at fair value on a recurring basis		0
Significant Unobservable Inputs Level 3 [Member]
Assets, Fair Value Disclosure [Abstract]
Deferred compensation plan assets	0	0
Liabilities, Fair Value Disclosure [Abstract]
Deferred compensation plan liabilities	0	0
Contingent consideration liabilities		323
Total liabilities measured at fair value on a recurring basis		$ 323