Acquisitions and Disposals (Unaudited Pro Forma Results Of Operations) (Details) (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012	Dec. 31, 2011
Business Acquisition, Cost of Acquired Entity [Abstract]
Proforma Revenue from Continuing Operations	$ 481,090	$ 450,722	$ 909,650	$ 841,441
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax	$ 35,434	$ 33,740	$ 64,926	$ 51,864
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax, Per Share, Diluted	$ 0.74	$ 0.72	$ 1.36	$ 1.12