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Common Stock, Options and Stock Compensation (Details) (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 31, 2013	Mar. 31, 2012
Compensation costs included in net income
Gross compensation costs	$ 2,129	$ 1,725	$ 3,054	$ 3,238
Income tax benefits	(720)	(570)	(1,019)	(1,016)
Net compensation expense	1,409	1,155	2,035	2,222
Proceeds from exercise of stock options			6	634
Common Stock Class A Non-voting
Compensation costs included in net income
Stock options exercised, shares	3,000	195,898	3,000	195,898
Proceeds from exercise of stock options		$ 600		$ 600

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- Definition

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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The total recognized tax benefit related to compensation cost for equity-based payment arrangements recognized in income during the period.

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

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