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Stockholders' Equity - Stock-based Compensation (Details)
$ / shares in Units, $ in Thousands
 3 Months Ended
Sep. 30, 2016
USD ($)
$ / shares
item
shares
Sep. 30, 2015
USD ($)
shares
Stock-based Compensation    
Number of share-based employee compensation plans | item 2  
Number of share-based employee compensation plans assumed from the acquisition of AS&E | item 2  
Stock based compensation expense | $ $ 5,410 $ 4,465
Less: Related income tax benefit | $ (2,142) (1,699)
Stock based compensation expense, net | $ $ 3,268 $ 2,766
Weighted-average period 1 year 9 months 18 days  
Number of Options    
Outstanding at the beginning of the period (in shares) 934,112  
Granted (in shares) 328  
Exercised (in shares) (4,136)  
Expired or forfeited (in shares) (2,287)  
Outstanding at the end of the period (in shares) 928,017  
Exercisable at the end of the period (in shares) 893,538  
Weighted-Average Exercise Price    
Outstanding at the beginning of the period (in dollars per share) | $ / shares $ 28.67  
Granted (in dollars per share) | $ / shares 61.17  
Exercised (in dollars per share) | $ / shares 46.97  
Expired or forfeited (in dollars per share) | $ / shares 71.42  
Outstanding at the end of the period (in dollars per share) | $ / shares 28.50  
Exercisable at the end of the period (in dollars per share) | $ / shares $ 26.85  
Weighted-Average Remaining Contractual Term    
Outstanding at the end of the period 3 years 8 months 12 days  
Exercisable at the end of the period 3 years 6 months  
Aggregate Intrinsic Value    
Outstanding at the end of the period | $ $ 34,600  
Exercisable at the end of the period | $ 34,580  
Stock Options    
Stock-based Compensation    
Unrecognized compensation cost | $ 600  
Restricted stock and RSU    
Stock-based Compensation    
Unrecognized compensation cost | $ $ 29,900  
Shares    
Nonvested at the beginning of the period (in shares) 530,498  
Granted (in shares) 187,815  
Vested (in shares) (24.646)  
Replacement RSUs 65,954  
Forfeited (in shares) (3,362)  
Nonvested at the end of the period (in shares) 756,259  
Weighted-Average Fair Value    
Nonvested at the beginning of the period (in dollars per share) | $ / shares $ 67.94  
Granted (in dollars per share) | $ / shares 61.26  
Vested (in dollars per share) | $ / shares $ 68.71  
Replacement RSUs | $ / shares 67.76  
Forfeited (in dollars per share) | $ / shares $ 70.21  
Nonvested at the end of the period (in dollars per share) | $ / shares $ 66.23  
Performance-based restricted stock units    
Shares    
Granted (in shares) 155,488 139,300
Performance-based restricted stock units | Minimum    
Weighted-Average Fair Value    
Payout as a percentage of the original number of shares awarded or units awarded, which are converted into shares of the Company's common stock 0.00%  
Performance-based restricted stock units | Maximum    
Weighted-Average Fair Value    
Payout as a percentage of the original number of shares awarded or units awarded, which are converted into shares of the Company's common stock 250.00%  
2012 Plan    
Weighted-Average Fair Value    
Securities available for grant 1,700,000  
2012 Plan | Restricted stock and RSU    
Weighted-Average Fair Value    
Number of shares available for grant reduced for each award granted 1.87  
Number of shares available for grant increased for each award forfeited and returned 1.87  
2005 AS&E Plan and the 2014 AS&E Plan | RSU    
Number of Options    
Granted (in shares) 0  
Cost of good sold    
Stock-based Compensation    
Stock based compensation expense | $ $ 295 $ 292
Selling, general and administrative    
Stock-based Compensation    
Stock based compensation expense | $ 5,060 4,108
Research and development    
Stock-based Compensation    
Stock based compensation expense | $ $ 55 $ 65