Credit Arrangements - 2011 Credit Agreement (Details) (USD $)				12 Months Ended						12 Months Ended	1 Months Ended					12 Months Ended
	Jun. 30, 2014	May 31, 2013	Sep. 30, 2011	Jun. 30, 2014 Term Loan [Member]	Mar. 22, 2013 Term Loan [Member]	Jun. 30, 2011 Term Loan [Member]	Jun. 30, 2014 Revolving Credit Facility [Member]	Mar. 22, 2013 Revolving Credit Facility [Member]	Jun. 30, 2011 Revolving Credit Facility [Member]	Jun. 30, 2012 2011 Credit Agreement [Member]	May 31, 2013 Interest Rate Swap [Member]	Sep. 30, 2011 Interest Rate Swap [Member]	Sep. 30, 2011 Interest Rate Cap [Member]	Jun. 30, 2014 JPMorganLOC [Member]	Jun. 30, 2014 RBSLOC [Member]	Jun. 30, 2014 Minimum [Member] JPMorganLOC [Member]	Jun. 30, 2014 Minimum [Member] RBSLOC [Member]	Jun. 30, 2014 Maximum [Member] JPMorganLOC [Member]	Jun. 30, 2014 Maximum [Member] RBSLOC [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity							$ 237,500,000							$ 4,500,000	$ 5,000,000
Long-term Debt	350,001,000				200,000,000	100,000,000
Principal amount of debt hedged with an interest rate swap agreement											100,000,000	100,000,000	25,000,000
Derivative Interest Rate Cap Arrangement			2.00%
Derivative, Fixed Interest Rate		0.73%										1.30%
Line of Credit Facility, Current Borrowing Capacity								300,000,000	300,000,000
Debt Instrument, Basis Spread on Variable Rate										1.75%
Debt Instrument, Periodic Payment, Principal				10,000,000
Line of Credit Facility, Maximum Borrowing Capacity														$ 4,500,000	$ 5,000,000
Debt Instrument, Interest Rate During Period																2.00%	2.00%	4.00%	4.00%