Consolidated Balance Sheets (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Sep. 30, 2014	Sep. 30, 2013
Current assets:
Allowance for doubtful accounts	$ 6,992	$ 5,519
Common stockholder’s equity:
Common stock, par value	$ 2.25	$ 2.25
Common stock, shares authorized	40,000,000	40,000,000
Common stock, shares issued	26,781,785	26,781,785
Common stock, shares outstanding	26,781,785	26,781,785