Quarterly Financial Data - Unaudited - Schedule of Quarterly Financial Data - Unaudited (Detail) $ / shares in Units, shares in Thousands, $ in Thousands |
3 Months Ended | 12 Months Ended | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
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Sep. 24, 2016
USD ($)
JointVenture
$ / shares
shares
|
Jun. 25, 2016
USD ($)
$ / shares
shares
|
Mar. 26, 2016
USD ($)
$ / shares
shares
|
Dec. 26, 2015
USD ($)
$ / shares
shares
|
Sep. 26, 2015
USD ($)
$ / shares
shares
|
Jun. 27, 2015
USD ($)
$ / shares
shares
|
Mar. 28, 2015
USD ($)
$ / shares
shares
|
Dec. 27, 2014
USD ($)
$ / shares
shares
|
Sep. 24, 2016
USD ($)
JointVenture
$ / shares
shares
|
Sep. 26, 2015
USD ($)
$ / shares
shares
|
Sep. 27, 2014
USD ($)
$ / shares
shares
|
|
| Quarterly Financial Information Disclosure [Abstract] | |||||||||||
| Net sales | $ 413,412 | $ 514,544 | $ 541,249 | $ 359,812 | $ 386,369 | $ 459,446 | $ 497,602 | $ 307,320 | $ 1,829,017 | $ 1,650,737 | $ 1,604,357 |
| Gross profit | 120,180 | 163,745 | 169,339 | 99,786 | 107,972 | 142,037 | 150,062 | 87,981 | 553,050 | 488,052 | 454,024 |
| Net income (loss) attributable to Central Garden & Pet Company | $ (5,611) | $ 26,030 | $ 32,697 | $ (8,602) | $ (4,369) | $ 18,800 | $ 23,237 | $ (5,697) | $ 44,514 | $ 31,971 | $ 8,804 |
| Net income per share attributable to Central Garden & Pet Company: | |||||||||||
| Basic (in usd per share) | $ / shares | $ (0.11) | $ 0.53 | $ 0.67 | $ (0.18) | $ (0.09) | $ 0.39 | $ 0.48 | $ (0.12) | $ 0.91 | $ 0.66 | $ 0.18 |
| Diluted (in usd per share) | $ / shares | $ (0.11) | $ 0.51 | $ 0.65 | $ (0.18) | $ (0.09) | $ 0.38 | $ 0.47 | $ (0.12) | $ 0.87 | $ 0.64 | $ 0.18 |
| Weighted average common shares outstanding: | |||||||||||
| Basic (in shares) | shares | 49,453 | 49,120 | 48,717 | 48,566 | 48,322 | 48,167 | 48,384 | 49,379 | 48,964 | 48,562 | 48,880 |
| Diluted (in shares) | shares | 49,453 | 51,063 | 50,445 | 48,566 | 48,322 | 49,290 | 49,439 | 49,379 | 51,075 | 49,638 | 49,397 |
| Debt instrument, redemption, incremental expense | $ 14,300 | ||||||||||
| Debt instrument, redemption, incremental expense, call premium | 8,300 | ||||||||||
| Debt instrument, redemption, incremental expense, overlapping interest expenses | $ 2,700 | ||||||||||
| Debt instrument, redemption, incremental expense, overlapping interest expenses, period | 30 days | ||||||||||
| Write-off of deferred financing costs | $ 3,300 | $ 3,337 | $ 537 | $ 1,731 | |||||||
| Gain on sale of manufacturing plant assets | $ 2,400 | ||||||||||
| Non-cash impairment charge | $ 16,600 | $ 19,367 | 7,272 | $ 5,870 | |||||||
| Number of joint ventures | JointVenture | 2 | 2 | |||||||||
| Non-cash impairment charge to indefinite-lived intangible assets | $ 1,800 | $ 7,300 | $ 1,800 | $ 7,300 | |||||||
| X | ||||||||||
- Definition Debt Instrument, Redemption, Incremental Expense No definition available.
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| X | ||||||||||
- Definition Debt Instrument, Redemption, Incremental Expense, Call Premium No definition available.
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| X | ||||||||||
- Definition Debt Instrument, Redemption, Incremental Expense, Overlapping Interest Expenses No definition available.
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| X | ||||||||||
- Definition Debt Instrument, Redemption, Incremental Expense, Overlapping Interest Expenses, Period No definition available.
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| X | ||||||||||
- Definition Number of joint ventures. No definition available.
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| X | ||||||||||
- Definition Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of gain (loss) on sale or disposal of property, plant and equipment assets, including oil and gas property and timber property. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Aggregate revenue less cost of goods and services sold or operating expenses directly attributable to the revenue generation activity. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Total revenue from sale of goods and services rendered during the reporting period, in the normal course of business, reduced by sales returns and allowances, and sales discounts. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition The average number of shares or units issued and outstanding that are used in calculating diluted EPS or earnings per unit (EPU), determined based on the timing of issuance of shares or units in the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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