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Joint Venture (Tables)
 9 Months Ended
Mar. 31, 2018
Equity Method Investments and Joint Ventures [Abstract]  
Schedule of Stockholders Equity
The changes in total stockholders' equity and noncontrolling interest were as follows (in thousands):

 
 
Total AOS Stockholders' Equity
 
Noncontrolling Interest
 
Total Equity
Balance, June 30, 2017
 
$
270,770

 
$
27,779

 
$
298,549

Exercise of common stock options and release of RSUs
 
1,352

 
—

 
1,352

Reissuance of treasury stock upon exercise of common stock options and release of RSUs
 
(91
)
 
—

 
(91
)
Withholding tax on restricted stock units
 
(2,248
)
 
—

 
(2,248
)
Issuance of shares under ESPP
 
1,439

 
—

 
1,439

Repurchase of common shares under shares repurchase program
 
(12,016
)
 
—

 
(12,016
)
     Stock-based compensation expense
 
8,477

 
—

 
8,477

     Net income (loss)
 
13,242

 
(5,269
)
 
7,973

Deferred tax asset related to ASU 2016-16 adoption
 
(5,480
)
 
—

 
(5,480
)
     Cumulative translation adjustment
 
4,848

 
4,398

 
9,246

     Contributions from noncontrolling interest
 
—

 
128,994

 
128,994

Balance, March 31, 2018
 
$
280,293

 
$
155,902

 
$
436,195