Acquisitions - Additional Information (Detail)
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Mar. 31, 2015
USD ($)
Jun. 30, 2014
USD ($)
Mar. 31, 2015
Red Bend Ltd. [Member]
USD ($)
Feb. 26, 2015
Red Bend Ltd. [Member]
USD ($)
Mar. 31, 2015
Red Bend Ltd. [Member]
USD ($)
Feb. 26, 2015
Red Bend Ltd. [Member]
USD ($)
Feb. 26, 2015
Red Bend Ltd. [Member]
Customer Relationships [Member]
Feb. 26, 2015
Red Bend Ltd. [Member]
Customer Relationships [Member]
USD ($)
Feb. 26, 2015
Red Bend Ltd. [Member]
Technology [Member]
Feb. 26, 2015
Red Bend Ltd. [Member]
Technology [Member]
USD ($)
Feb. 26, 2015
Red Bend Ltd. [Member]
Pre-acquisition [Member]
USD ($)
Feb. 26, 2015
Red Bend Ltd. [Member]
Post-acquisition [Member]
USD ($)
Feb. 26, 2015
Red Bend Ltd. [Member]
Maximum [Member]
USD ($)
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
USD ($)
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
EUR (€)
Mar. 31, 2015
S1nn GmbH & Co. KG [Member]
USD ($)
Mar. 31, 2015
S1nn GmbH & Co. KG [Member]
USD ($)
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
USD ($)
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
EUR (€)
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
Customer Relationships [Member]
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
Customer Relationships [Member]
USD ($)
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
Internally Developed Software [Member]
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
Internally Developed Software [Member]
USD ($)
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
Covenant Not-to-Compete [Member]
Feb. 01, 2015
S1nn GmbH & Co. KG [Member]
Covenant Not-to-Compete [Member]
USD ($)
Dec. 30, 2014
IPSG/VFX [Member]
USD ($)
Dec. 30, 2014
IPSG/VFX [Member]
Harman International Industries Pty Ltd [Member]
Mar. 31, 2015
IPSG/VFX [Member]
Harman International Industries Pty Ltd [Member]
USD ($)
Mar. 31, 2015
IPSG/VFX [Member]
Harman International Industries Pty Ltd [Member]
USD ($)
Dec. 30, 2014
IPSG/VFX [Member]
Harman International Industries Pty Ltd [Member]
USD ($)
Dec. 30, 2014
IPSG/VFX [Member]
Harman International Industries Pty Ltd [Member]
Technology [Member]
Dec. 30, 2014
IPSG/VFX [Member]
Maximum [Member]
Harman International Industries Pty Ltd [Member]
USD ($)
Jun. 17, 2014
Yurbuds [Member]
USD ($)
Mar. 31, 2015
Yurbuds [Member]
Jun. 30, 2014
Yurbuds [Member]
USD ($)
Jun. 17, 2014
Yurbuds [Member]
USD ($)
Jun. 17, 2014
Yurbuds [Member]
Customer Relationships [Member]
Jun. 17, 2014
Yurbuds [Member]
Customer Relationships [Member]
USD ($)
Jun. 17, 2014
Yurbuds [Member]
Customer Contracts [Member]
USD ($)
Jun. 17, 2014
Yurbuds [Member]
Trade Names [Member]
Jun. 17, 2014
Yurbuds [Member]
Trade Names [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
USD ($)
Mar. 31, 2015
AMX LLC [Member]
USD ($)
Mar. 31, 2015
AMX LLC [Member]
USD ($)
Jun. 30, 2014
AMX LLC [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
Customer Relationships [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
Technology [Member]
Jun. 13, 2014
AMX LLC [Member]
Technology [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
Covenant Not-to-Compete [Member]
Jun. 13, 2014
AMX LLC [Member]
Covenant Not-to-Compete [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
Trade Names [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
Working Capital Holdback [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
Backlog [Member]
Jun. 13, 2014
AMX LLC [Member]
Backlog [Member]
USD ($)
Jun. 13, 2014
AMX LLC [Member]
Maximum [Member]
Jun. 13, 2014
AMX LLC [Member]
Maximum [Member]
Customer Relationships [Member]
Jun. 13, 2014
AMX LLC [Member]
Minimum [Member]
Jun. 13, 2014
AMX LLC [Member]
Minimum [Member]
Customer Relationships [Member]
Business Acquisition [Line Items]                                                                                                                      
Purchase price           $ 195,000,000                                               $ 5,000,000           $ 37,000,000                   $ 365,000,000                          
Cash paid to acquire entity       70,700,000                   54,000,000 47,800,000                                   32,500,000                 372,900,000                                  
Common stock shares consideration, amount       124,300,000                                                                                                              
Acquisition, third party debt assumed and paid off       5,600,000                                                                                                              
Number of days for working capital adjustment       90 days                                                         120 days                                                    
Acquisition earn-out contingent payable         30,000,000               30,000,000                                 7,700,000   8,000,000       3,700,000     800,000             25,000,000             2,000,000            
Preliminary valuation of contingent consideration     22,400,000 22,400,000                                                         6,200,000                                                    
Holdback Amounts in escrow           16,000,000                       4,600,000 4,100,000                                                     27,000,000                          
Number of years expected to occur certain days       18 months                                             18 months           18 months                 36 months                                  
Consideration Transferred placed in escrow to be used for Post Closing Adjustment       1,000,000                                                                                                              
Consideration Transferred placed in Expense Fund to be used for future seller expenses       300,000                                                                                                              
Business acquisition date         Feb. 26, 2015                       Feb. 01, 2015                       Dec. 30, 2014         Jun. 17, 2014                   Jun. 13, 2014                              
Shares of common stock transferred       897,424                                                                                                              
Fair market value of transferred shares of common stock       $ 137.78                                                                                                              
Issuance of common shares from treasury stock         839,287                                                                                                            
Restricted stock units vested         58,137                                                                                                            
Fair value of awards associated with services                     600,000 1,900,000                                                                                              
Goodwill 710,599,000 540,952,000       168,305,000                       18,907,000               9,475,000       9,500,000           35,731,000                   243,008,000                          
Goodwill amount deductible for tax purposes           0                       18,700,000                       0           0                   0                          
Acquired intangible assets           79,550,000   3,800,000   75,700,000               25,903,000     6,900,000   18,300,000   700,000 4,537,000                   4,000,000   3,100,000     900,000         101,030,000 26,700,000   17,000,000   100,000 55,700,000     1,500,000        
Total revaluation adjustment           5,800,000                                                                                                          
Approximate useful life             5 years   7 years                     9 years   7 years   3 years             5 years           7 years     25 months               5 years   3 years       2 months     9 years   2 years
Purchase consideration, total                           47,400,000 42,000,000                                                                                        
Final adjustments delivered period                           30 days 30 days                                                                                        
Acquisition costs incurred                               700,000 700,000                     0 300,000           500,000                   8,100,000                            
Holdback percentage of contingent payable                                                           15.00%                                                          
Maximum acquisition earn-out                                                                       38,000,000                                              
Adjustment resulting in reduction to the purchase price                                                                                   7,900,000 300,000 300,000                              
Purchase price inventories                                   2,975,000                                   5,456,000             4,200,000 4,200,000   28,781,000                          
Property, plant and equipment           $ 1,314,000                       $ 2,627,000                                   $ 2,928,000             $ 2,700,000 $ 2,700,000   $ 28,189,000                          
Fair value amortized estimated lives                                                                                   4 months                           35 years   5 years