Fair Value of Financial Instruments - Additional Information (Details) € in Thousands, £ in Thousands, $ in Thousands	11 Months Ended	12 Months Ended
	Jun. 30, 2014 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2016 EUR (€) derivative	Jun. 30, 2016 GBP (£) derivative	Jun. 30, 2016 USD ($) derivative	Jun. 30, 2015 EUR (€)	Jun. 30, 2015 GBP (£)	Jun. 30, 2015 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long term debt carrying value					$ 708,238			$ 973,654
Impairment charges	$ 1,006	$ 2,026
Bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long term debt carrying value					196,743			196,107
Bonds | Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Long term debt fair value					$ 209,000			204,000
Interest Rate Swaps
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
Number of derivative instruments | derivative			2	2	2
derivative instruments, fair value					$ 3,573			$ 2,988
Interest rate swaps One
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
derivative instruments, notional amount | £				£ 84,608			£ 113,970
derivative instruments, fixed interest rate			1.1649%	1.1649%	1.1649%
Interest rate swaps Two
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis
derivative instruments, notional amount | €			€ 97,786			€ 131,719
derivative instruments, fixed interest rate			1.0139%	1.0139%	1.0139%