Intangible Assets - Summary of intangible Assets (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Jun. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Intangible assets	$ 556,864	$ 552,388
Less accumulated amortization	(373,780)	(357,206)
Total intangible assets, net	183,084	195,182
Customer contracts and related customer relationships
Finite-Lived Intangible Assets [Line Items]
Intangible assets	524,067	520,213
Less accumulated amortization	(344,223)	(328,217)
Acquired technologies
Finite-Lived Intangible Assets [Line Items]
Intangible assets	27,848	27,177
Less accumulated amortization	(25,254)	(24,728)
Covenants not to compete
Finite-Lived Intangible Assets [Line Items]
Intangible assets	3,380	3,417
Less accumulated amortization	(3,266)	(3,241)
Other
Finite-Lived Intangible Assets [Line Items]
Intangible assets	1,569	1,581
Less accumulated amortization	$ (1,037)	$ (1,020)