Equity and Earnings Per Share (Computation Of Basic And Diluted Earnings Per Common Share) (Details) (USD $)	3 Months Ended		12 Months Ended	15 Months Ended	1 Months Ended			3 Months Ended	0 Months Ended	3 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Jun. 30, 2013	Sep. 30, 2013	Sep. 30, 2012 September 2012 Accelerated Share Repurchase [Member]	Sep. 30, 2012 September Open Market Repurchases [Member]	Mar. 31, 2013 March 2013 Accelerated Share Repurchase [Member]	Sep. 30, 2013 March 2013 Accelerated Share Repurchase [Member]	Mar. 31, 2013 March Open Market Repurchases [Member]	Sep. 30, 2013 March Open Market Repurchases [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Authorized	5,000,000		5,000,000	5,000,000
Preferred Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01	$ 0.01
Preferred Stock, Shares Outstanding	0		0	0
Common Stock, Shares Authorized	150,000,000		150,000,000	150,000,000
Common Stock, Par or Stated Value Per Share	$ 0.01		$ 0.01	$ 0.01
Common Stock, Shares, Outstanding	56,457,259		56,310,582	56,457,259
Disclosure of Repurchase Agreements [Abstract]
Stock Repurchase Program Authorized Amount	$ 200,000,000
Treasury Stock, Shares, Acquired				5,458,285				101,247		51,071
Treasury Stock, Value, Acquired, Cost Method	2,400,000		197,600,000	200,000,000	50,000,000	50,000,000	50,000,000		50,000,000
Treasury Stock, Value, Acquired, Average Cost Per Share	$ 36.64
Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract]
Net income attributable to common stock	$ 25,954,000	$ 15,064,000
Weighted average number of shares outstanding, used in computing basic earnings per share	56,254,000	60,111,000
Dilutive common stock equivalents	1,141,000	1,115,000
Weighted average number of shares outstanding used in computing diluted earnings per share	57,395,000	61,226,000
Basic earnings per share	$ 0.46	$ 0.25
Diluted earnings per share	$ 0.45	$ 0.25
Anti-dilutive options (excluded from the calculation of diluted earnings per share)	95,000	470,000