Restructuring Program - Restructuring Expenses by Reporting Business Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2016	Dec. 31, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 20,466	$ 2,946	$ 33,040	$ 2,113
Asset Impairments	598	1,940	666	3,964
Total	21,064	4,886	33,706	6,077
Connected Car [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	18,832	(443)	20,245	(1,237)
Lifestyle Audio [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	711	867	3,331	1,174
Professional Solutions [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	243	$ 2,522	8,716	$ 2,176
Connected Services [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring expenses	$ 680		$ 748