Quarterly report pursuant to Section 13 or 15(d)

Supplemental Equity Information - Summary of Changes in Carrying Amounts of Equity Attributable to Controlling Interest and Noncontrolling Interest (Details)

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Supplemental Equity Information - Summary of Changes in Carrying Amounts of Equity Attributable to Controlling Interest and Noncontrolling Interest (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 25, 2016
Jun. 27, 2015
Jun. 25, 2016
Jun. 27, 2015
Class of Stock [Line Items]        
Beginning balance     $ 506,380 $ 486,453
Comprehensive income $ 26,389 $ 19,738 50,509 36,857
Amortization of share-based awards     4,796 4,513
Restricted share activity     (1,229) (1,200)
Issuance of common stock, including net share settlement of stock options     (6,647) 907
Repurchase of common stock       (15,123)
Tax benefit on stock option exercise, net of tax deficiency     4,722 685
Distribution to Noncontrolling interest     (592) (1,680)
Other     1  
Ending balance 557,940 511,412 557,940 511,412
Additional Paid In Capital        
Class of Stock [Line Items]        
Beginning balance     388,636 396,586
Amortization of share-based awards     4,796 4,513
Restricted share activity     (1,230) (1,200)
Issuance of common stock, including net share settlement of stock options     (6,654) 904
Repurchase of common stock       (12,726)
Tax benefit on stock option exercise, net of tax deficiency     4,722 685
Ending balance 390,270 388,762 390,270 388,762
Retained Earnings        
Class of Stock [Line Items]        
Beginning balance     115,987 86,396
Comprehensive income     50,125 36,340
Repurchase of common stock       (2,380)
Ending balance 166,112 120,356 166,112 120,356
Accumulated Other Comprehensive Income        
Class of Stock [Line Items]        
Beginning balance     164 1,232
Comprehensive income     (969) (553)
Ending balance (805) 679 (805) 679
Total        
Class of Stock [Line Items]        
Beginning balance     505,286 484,723
Comprehensive income     49,156 35,787
Amortization of share-based awards     4,796 4,513
Restricted share activity     (1,229) (1,200)
Issuance of common stock, including net share settlement of stock options     (6,647) 907
Repurchase of common stock       (15,123)
Tax benefit on stock option exercise, net of tax deficiency     4,722 685
Ending balance 556,084 510,292 556,084 510,292
Noncontrolling Interest        
Class of Stock [Line Items]        
Beginning balance     1,094 1,730
Comprehensive income     1,353 1,070
Distribution to Noncontrolling interest     (592) (1,680)
Other     1  
Ending balance 1,856 1,120 1,856 1,120
Common Stock        
Class of Stock [Line Items]        
Beginning balance     119 124
Issuance of common stock, including net share settlement of stock options     1  
Repurchase of common stock       (5)
Ending balance 120 119 120 119
Class A Common Stock        
Class of Stock [Line Items]        
Beginning balance     364 369
Restricted share activity     1 0
Issuance of common stock, including net share settlement of stock options     6 3
Repurchase of common stock       (12)
Ending balance 371 360 371 360
Class B Stock        
Class of Stock [Line Items]        
Beginning balance     16 16
Ending balance $ 16 $ 16 $ 16 $ 16