Credit Agreements (Details) (USD $)	3 Months Ended	9 Months Ended						9 Months Ended		9 Months Ended
	Mar. 31, 2012	Mar. 31, 2013	Mar. 22, 2013	Jun. 30, 2012	Dec. 20, 2012 2012 Term Loan [Member]	Dec. 20, 2012 2012 Term Loan Base Rate [Member]	Dec. 20, 2012 2012 Term Loan LIBOR [Member]	Mar. 31, 2013 HSBC TD US Banks Term Loan [Member]	Jan. 22, 2013 HSBC TD US Banks Term Loan [Member]	Mar. 31, 2013 JP Morgan UK [Member]	Mar. 31, 2013 RBSNederlandNV [Member]	Mar. 31, 2013 Interest Rate Cap [Member]	Mar. 31, 2013 Interest Rate Swap [Member]	Mar. 22, 2013 2013 Credit Agreement LIBOR [Member]	Jun. 30, 2011 2011 Credit Agreement [Member]	Mar. 31, 2013 2013 Credit Agreement [Member]	Mar. 22, 2013 Swingline Loan [Member]	Mar. 31, 2013 Revolving Credit Facility [Member]	Mar. 22, 2013 Revolving Credit Facility [Member]	Jun. 30, 2011 Revolving Credit Facility [Member]	Mar. 22, 2013 2013 Credit Agreement Federal Funds Rate [Member]	Mar. 22, 2013 2013 Credit Agreement One Month LIBOR [Member]	Mar. 22, 2013 2013 Credit Agreement One Month LIBOR Margin [Member]	Mar. 22, 2013 2013 Credit Agreement Swingline [Member]	Mar. 31, 2013 Term Loan [Member]	Mar. 22, 2013 Term Loan [Member]	Jun. 30, 2011 Term Loan [Member]
Line of Credit Facility [Line Items]
Long-term Debt																										$ 200,000,000	$ 100,000,000
Short-term Debt					100,000,000				25,000,000
Debt Instrument, Face Amount																			200,000,000
Proceeds from Issuance of Long-term Debt	107,500,000
Line of Credit Facility, Current Borrowing Capacity																	75,000,000		300,000,000	300,000,000
Letters of Credit Outstanding, Amount		8,800,000																	10,000,000
Debt Instrument, Basis Spread on Variable Rate						0.75%	1.75%							1.75%	1.75%						0.50%	1.00%	0.75%	0.75%
Term Loan, Quarterly Principal Payment Percentage,year one and two			1.25%
Term Loan, Quarterly Principal Payment Percentage,year three			2.50%
Term Loan, Quarterly Principal Payment Percentage,year four			5.00%
Term Loan, Quarterly Principal Payment Percentage,year five			7.50%
Term Loan, Quarterly Principal Payment Percentage,maturity date			37.50%
Proceeds from Short-term Debt								75,000,000
Credit agreement maximum borrowing capacity										4,500,000	5,000,000
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum										2.00%	1.00%
Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum										4.00%	2.00%
Line of credit facility amount outstanding																		200,000,000
Long-term Debt, Gross		400,000,000																							200,000,000
Deferred Finance Costs, Net		3,600,000
Max commitment fee on revolving loan unused amount, percentage		0.35%
Remaining borrowing available under revolving credit facility										4,500,000	5,000,000							100,000,000
Interest rate swap, fixed interest rate		1.30%
Derivative interest rate cap arrangement		2.00%
Principal amount of debt hedged with an interest rate swap agreement												50,000,000	100,000,000
Debt, Weighted Average Interest Rate																1.73%
Debt Instrument, Periodic Payment, Principal		2,500,000
Bank Overdrafts		$ 55,700,000		$ 63,400,000