COMMITMENTS AND CONTINGENCIES - Movements in Warranty Accrual for Period (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 30, 2017	Dec. 31, 2016	Dec. 30, 2017	Dec. 31, 2016
Warranty Provision Roll Forward:
Warranty provision—beginning of period	$ 4,271	$ 4,600	$ 4,124	$ 3,827
Warranties issued	84	437	300	1,542
Warranties utilized or expired	(153)	(371)	(273)	(655)
Currency translation and other adjustments	4	(106)	55	(154)
Warranty provision—end of period	$ 4,206	$ 4,560	$ 4,206	$ 4,560