Stock-Based Compensation (Narrative) (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended		3 Months Ended		6 Months Ended					3 Months Ended		6 Months Ended
	Dec. 31, 2012	Jun. 30, 2012	Dec. 31, 2012 Long-Term Management Incentive Compensation Plan [Member]	Dec. 31, 2011 Long-Term Management Incentive Compensation Plan [Member]	Dec. 31, 2012 Long-Term Management Incentive Compensation Plan [Member]	Dec. 31, 2011 Long-Term Management Incentive Compensation Plan [Member]	Dec. 31, 2012 Long-Term Management Incentive Compensation Plan [Member] 2011-2013 [Member]	Dec. 31, 2012 Long-Term Management Incentive Compensation Plan [Member] 2012-2014 [Member]	Dec. 31, 2012 Long-Term Management Incentive Compensation Plan [Member] 2013-2015 [Member]	Dec. 31, 2012 Stock Option Plans [Member]	Dec. 31, 2011 Stock Option Plans [Member]	Dec. 31, 2012 Stock Option Plans [Member]	Dec. 31, 2011 Stock Option Plans [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares approved to be issued under plan	500,000
Shares issued	143,307
Period for performance awards, years	3 years
Performance awards earned, percentage payable as stock	60.00%
Performance awards earned, percentage payable as cash	40.00%
Cash awards payable within current liabilities	$ 0.5	$ 1.1
Cash awards payable within long-term liabilities	0.3	0.7
Compensation cost			$ 0.3	$ 0.1	$ 0.7	$ 0.4	$ 1.2	$ 1.1	$ 1.0	$ 0.3	$ 0.3	$ 0.4	$ 0.3
Shares available for future grants	269,500