Common Stock, Options and Stock Compensation - Additional Disclosures (Details) (USD $)	3 Months Ended		9 Months Ended		1 Months Ended				3 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014 Common Class A [Member]	Mar. 25, 2014 Common Class A [Member]	Sep. 30, 2013 Common Class A [Member]	Jun. 30, 2013 Common Class A [Member]	Mar. 31, 2014 Restricted Stock [Member] Executive Chairman [Member]	Mar. 31, 2014 October 2, 2014 Restricted Stock [Member] Executive Chairman [Member]	Mar. 31, 2014 October 2, 2016 Restricted Stock [Member] Executive Chairman [Member]
Class of Stock [Line Items]
Stock options exercised, shares	0	15,000	0	18,000
Common stock, shares authorized					100,000,000	100,000,000	55,550,000	54,000,000
Accelerated vesting of restricted stock									270,000	135,000	135,000
Gross compensation costs									$ 2,200,000
Treasury stock acquired, shares					1,000,000
Treasury stock acquired			$ 11,900,000		$ 11,900,000