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Supplemental Equity Information - Summary of Changes in Carrying Amounts of Equity Attributable to Controlling Interest and Noncontrolling Interest (Detail) (USD $)
In Thousands, unless otherwise specified |
3 Months Ended | 6 Months Ended | 6 Months Ended | ||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Mar. 29, 2014
|
Mar. 30, 2013
|
Mar. 29, 2014
|
Mar. 30, 2013
|
Mar. 29, 2014
Additional Paid In Capital [Member]
Controlling Interest [Member]
|
Mar. 30, 2013
Additional Paid In Capital [Member]
Controlling Interest [Member]
|
Mar. 29, 2014
Retained Earnings [Member]
Controlling Interest [Member]
|
Mar. 30, 2013
Retained Earnings [Member]
Controlling Interest [Member]
|
Mar. 29, 2014
Accumulated Other Comprehensive Income [Member]
Controlling Interest [Member]
|
Mar. 30, 2013
Accumulated Other Comprehensive Income [Member]
Controlling Interest [Member]
|
Mar. 29, 2014
Total [Member]
Controlling Interest [Member]
|
Mar. 30, 2013
Total [Member]
Controlling Interest [Member]
|
Mar. 29, 2014
Noncontrolling Interest [Member]
|
Mar. 30, 2013
Noncontrolling Interest [Member]
|
Mar. 29, 2014
Common Stock [Member]
Controlling Interest [Member]
|
Mar. 30, 2013
Common Stock [Member]
Controlling Interest [Member]
|
Sep. 29, 2012
Common Stock [Member]
Controlling Interest [Member]
|
Mar. 29, 2014
Class A Common Stock [Member]
Controlling Interest [Member]
|
Mar. 30, 2013
Class A Common Stock [Member]
Controlling Interest [Member]
|
Mar. 29, 2014
Class B Common Stock [Member]
Controlling Interest [Member]
|
Sep. 28, 2013
Class B Common Stock [Member]
Controlling Interest [Member]
|
Mar. 30, 2013
Class B Common Stock [Member]
Controlling Interest [Member]
|
Sep. 29, 2012
Class B Common Stock [Member]
Controlling Interest [Member]
|
|
| Beginning balance | $ 470,024 | $ 464,883 | $ 389,153 | $ 382,195 | $ 77,592 | $ 79,718 | $ 1,442 | $ 1,539 | $ 468,678 | $ 463,937 | $ 1,346 | $ 946 | $ 122 | $ 122 | $ 122 | $ 353 | $ 347 | $ 16 | $ 16 | $ 16 | $ 16 | ||
| Comprehensive income (loss) | 21,491 | 22,394 | 8,764 | 7,006 | 8,187 | 6,927 | 87 | (607) | 8,274 | 6,320 | 490 | 686 | |||||||||||
| Stock based compensation | 2,486 | 2,441 | 2,486 | 2,441 | 2,486 | 2,441 | |||||||||||||||||
| Restricted share activity | 3,977 | 2,503 | 3,968 | 2,498 | 3,977 | 2,503 | 9 | 5 | |||||||||||||||
| Issuance of common stock | 565 | 638 | 562 | 638 | 565 | 638 | 1 | 2 | |||||||||||||||
| Repurchase of common stock | (1,502) | (1,305) | (197) | (1,502) | |||||||||||||||||||
| Tax benefit on stock option exercise | 321 | 289 | 321 | 289 | 321 | 289 | |||||||||||||||||
| Distribution to Noncontrolling interest | (633) | (629) | (633) | (629) | |||||||||||||||||||
| Ending balance | $ 485,504 | $ 475,629 | $ 485,504 | $ 475,629 | $ 396,490 | $ 386,756 | $ 85,779 | $ 86,448 | $ 1,529 | $ 932 | $ 484,301 | $ 474,626 | $ 1,203 | $ 1,003 | $ 123 | $ 122 | $ 122 | $ 364 | $ 352 | $ 16 | $ 16 | $ 16 | $ 16 |