Share-based Compensation - Narrative (Details) (USD $)	9 Months Ended			9 Months Ended			9 Months Ended		3 Months Ended		9 Months Ended				3 Months Ended		9 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Mar. 28, 2013	Mar. 31, 2013 Omnibus Plan	Dec. 06, 2012 Omnibus Plan	Sep. 30, 2012 Omnibus Plan	Mar. 31, 2013 Stock Options	Mar. 31, 2012 Stock Options	Mar. 31, 2013 Stock Options General and Administrative Expense	Mar. 31, 2012 Stock Options General and Administrative Expense	Mar. 31, 2013 Stock Options General and Administrative Expense	Mar. 31, 2012 Stock Options General and Administrative Expense	Mar. 31, 2013 Restricted Stock	Mar. 31, 2012 Restricted Stock	Mar. 31, 2013 Restricted Stock General and Administrative Expense	Mar. 31, 2012 Restricted Stock General and Administrative Expense	Mar. 31, 2013 Restricted Stock General and Administrative Expense	Mar. 31, 2012 Restricted Stock General and Administrative Expense
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	163,446
Weighted average exercise price of stock options granted	$ 11.85
Award vesting period				3 years
Forfeiture rate							6.50%
Share price			$ 14.70
Fair value of options vested	$ 900,000
Proceeds from stock option exercises	1,195,000	0
Number of stock options, exercised	(116,471)
Unrecognized compensation cost related to restricted stock							1,300,000	1,900,000					1,000,000	1,300,000
Allocated share-based compensation expense									$ 200,000	$ 400,000	$ 700,000	$ 1,000,000			$ 100,000	$ 400,000	$ 600,000	$ 200,000
Shares awarded, granted													45,230
Restricted stock, granted, weighted average grant date fair value													$ 11.42