Fair Value Measurements (Fair Value of Assets Measured on Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Assets:
Cash equivalents	$ 10,535	$ 10,531
Deferred compensation	3,526	2,862
Liabilities:
Deferred compensation	3,688	2,862
Fair Value, Inputs, Level 1
Assets:
Cash equivalents	10,535	10,531
Deferred compensation	724	793
Fair Value, Inputs, Level 2
Assets:
Deferred compensation	2,802	2,069
Liabilities:
Deferred compensation	$ 3,688	$ 2,862