Share-based Compensation - Narrative (Details) (USD $) In Millions, except Share data, unless otherwise specified	6 Months Ended				6 Months Ended		3 Months Ended		6 Months Ended				3 Months Ended		6 Months Ended		1 Months Ended	3 Months Ended
	Dec. 31, 2012	Dec. 31, 2012 Omnibus Plan	Dec. 06, 2012 Omnibus Plan	Sep. 30, 2012 Omnibus Plan	Dec. 31, 2012 Stock Options	Dec. 31, 2011 Stock Options	Dec. 31, 2012 Stock Options General and Administrative Expense	Dec. 31, 2011 Stock Options General and Administrative Expense	Dec. 31, 2012 Stock Options General and Administrative Expense	Dec. 31, 2011 Stock Options General and Administrative Expense	Dec. 31, 2012 Restricted Stock	Dec. 31, 2011 Restricted Stock	Dec. 31, 2012 Restricted Stock General and Administrative Expense	Dec. 31, 2011 Restricted Stock General and Administrative Expense	Dec. 31, 2012 Restricted Stock General and Administrative Expense	Dec. 31, 2011 Restricted Stock General and Administrative Expense	Dec. 31, 2012 Restricted Stock Omnibus Plan	Dec. 31, 2011 Restricted Stock Omnibus Plan
Employee Service Share-based Compensation, Allocation of Recognized Period Costs
Number of shares authorized			1,125,000	1,000,000
Number of stock options granted	158,006
Weighted average exercise price of stock options granted	$ 11.81
Award vesting period		3 years
Forfeiture rate					6.50%
Share price	$ 14.43
Fair value of options vested	$ 0.4
Allocated share-based compensation expense							0.3	0.3	0.5	0.6			0.3	0.2	0.5	0.3
Shares awarded, granted											44,374						37,544	78,756
Restricted stock, granted, weighted average grant date fair value											$ 11.39						$ 11.81	$ 7.32
Unrecognized compensation cost related to restricted stock					$ 1.6	$ 1.4					$ 1.2	$ 1.3