Fair Value Measurements (Tables)

9 Months Ended

Mar. 31, 2016

Fair Value Disclosures [Abstract]

Schedule of fair value of derivative instruments based upon pricing models

As of	March 31, 2016									June 30, 2015
​	Level 1			Level 2			Level 3			Level 1			Level 2			Level 3
Derivatives asset/(liability)	​	$	—	​	$	(220)	​	$	—	​	$	—	​	$	(1,542)	​	$	—
Deferred consideration on acquisitions	​	$	—	​	$	—	​	$	(6,351)	​	$	—	​	$	—	​	$	(5,465)

Schedule of changes in the fair value of Level 3 assets

Balance, June 30, 2015	$	(5,465)
Acquisition-related accrued interest	​	(1,082)
Payment and other	​	196
Balance, March 31, 2016	$	(6,351)