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Share Based Awards - Additional Information (Details) - USD ($)
3 Months Ended
Oct. 23, 2018
Dec. 29, 2016
Aug. 11, 2014
Jun. 30, 2019
Jun. 30, 2018
Mar. 31, 2019
Aug. 31, 2015
Oct. 31, 2005
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Outstanding stock options       3,057,125   3,166,525    
Fair value of options vested       $ 1,494,000        
Total share-based compensation       $ 4,891,000 $ 3,116,000      
Percentage of performance stock units tied to 3-year total shareholder return       34.00%        
Percentage of performance stock units tied to fiscal year 2021 revenue       33.00%        
Percentage performance stock units tied to fiscal year 2021 adjusted earnings per share goals       33.00%        
Employee Stock Options                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Outstanding stock options       2,792,705        
Total unrecognized compensation costs       $ 7,072,000        
Stock option recognized over weighted average period (in years)       2 years 1 month 6 days        
Restricted Stock                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, non-option equity instruments, outstanding, number       1,946,725   1,715,958    
Stock option recognized over weighted average period (in years)       2 years 1 month 6 days        
Total share-based compensation       $ 3,296,000 1,920,000      
Total unrecognized compensation costs       $ 28,350,000        
Share-based compensation arrangement by share-based payment award, options, grants in period, net of forfeitures       623,705        
Restricted Stock | Minimum                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Vesting period       1 year        
Restricted Stock | Maximum                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Vesting period       4 years        
Performance Shares                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Common stock reserved   123,082            
Total share-based compensation       $ 61,000        
Vesting period       4 years        
Weighted-average grant date fair value   $ 10.63            
Performance Stock Unit Awards                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Total share-based compensation       $ 438,000        
Weighted-average grant date fair value $ 17.84              
Share-based compensation arrangement by share-based payment award, options, grants in period, net of forfeitures 248,140              
Percentage of shares issued, minimum 50.00%              
Percentage of shares issued, maximum 200.00%              
2005 Employee Stock Option and Incentive Plan                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Common stock reserved for issuance               4,800,000
Outstanding stock options       264,420        
2005 Employee Stock Option and Incentive Plan | Employee Stock Options                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Expiration period (in years)       10 years        
Share-based compensation award plan , expiration date       May 25, 2015        
2015 Plan                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Common stock reserved for issuance       6,000,000        
Common stock reserved             11,500,000  
Shares available for future grant       5,020,749        
2015 Plan | Employee Stock Options                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Expiration period (in years)       10 years        
2015 Plan | Performance Shares                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Share-based compensation arrangement by share-based payment award, non-option equity instruments, outstanding, number       46,375        
Share-based compensation arrangement by share-based payment award, non-option equity instruments, outstanding, number       46,375        
Employee Share Purchase Plan                
Share Based Compensation Arrangement By Share Based Payment Award [Line Items]                
Common stock reserved for issuance     4,000,000 3,502,513        
Total share-based compensation       $ 122,000 $ 132,000      
Maximum percentage of gross payroll deduction     15.00%          
Purchase price as a percentage of fair market value     90.00%          
Maximum shares purchase in a single transaction     1,500          
Maximum amount purchased in a calendar year     $ 25,000          
Shares issued       497,487