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Stock-Based Compensation - Stock Options and Significant Valuation Assumptions (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended 9 Months Ended
May 20, 2019
Dec. 28, 2019
Dec. 29, 2018
Dec. 28, 2019
Dec. 29, 2018
Stock Options          
Assumptions used          
Expected option term         5 years 3 months 18 days
Expected volatility factor, minimum       35.30% 36.10%
Expected volatility factor, maximum       35.60% 36.50%
Risk-free interest rate       2.30% 2.80%
Expected annual dividend yield       0.00% 0.00%
Stock Options          
Outstanding at the beginning of period       1,293,347  
Granted       344,225  
Exercised       (364,536)  
Canceled, forfeited or expired       (5,401)  
Outstanding at the end of period   1,267,635   1,267,635  
Vested and expected to vest after end of period   1,267,635   1,267,635  
Exercisable at end of period   283,134   283,134  
Grant Date Weighted-Average Exercise Price          
Outstanding at the beginning of period       $ 15.40  
Granted       28.63  
Exercise price (in dollars per share)       12.93  
Canceled, forfeited or expired       27.50  
Outstanding at the end of period   $ 19.66   19.66  
Vested and expected to vest at end of period   19.66   19.66  
Exercisable at end of period   $ 19.26   $ 19.26  
Weighted Average Remaining Contractual Life          
Weighted average remaining contractual life, awards outstanding       6 years 2 months 12 days  
Weighted average remaining contractual life, awards vested and expected to vest       6 years 2 months 12 days  
Weighted average remaining contractual life, awards exercisable       4 years 1 month 6 days  
Aggregate Intrinsic Value          
Aggregate intrinsic value, awards exercised       $ 8,996  
Aggregate intrinsic value, awards outstanding   $ 29,933   29,933  
Aggregate intrinsic value, awards vested and expected to vest   29,933   29,933  
Aggregate intrinsic value, awards exercisable   $ 6,799   $ 6,799  
2014 Plan | Stock Options          
Stock Options          
Granted   0 0 344,225  
Minimum | Stock Options          
Assumptions used          
Expected option term       6 years 3 months 18 days  
Maximum | Stock Options          
Assumptions used          
Expected option term       7 years  
CEO | 2014 Plan          
Assumptions used          
Stock price (in dollars per share) $ 28.63        
Exercise price (in dollars per share) $ 28.63 $ 28.63   $ 28.63  
Expected option term 7 years        
Expected volatility factor 35.30%        
Risk-free interest rate 2.30%        
Expected annual dividend yield 0.00%        
Stock Options          
Granted 227,273