Central Garden & Pet Company Annual report pursuant to Section 13 and 15(d)

Annual report pursuant to Section 13 and 15(d)

Cover
- Document and Entity Information
Financial Statements
Notes to Financial Statements
Accounting Policies
- Organization and Significant Accounting Policies (Policies)
Notes Tables
Notes Details

Stock-Based Compensation - Additional Information 1 (Detail)

v2.4.0.8

Stock-Based Compensation - Additional Information 1 (Detail) (USD $)	1 Months Ended	12 Months Ended								12 Months Ended
	Mar. 31, 2012 Employees	Sep. 27, 2014	Sep. 27, 2014 Stock Options [Member] Installment	Sep. 28, 2013 Stock Options [Member]	Sep. 29, 2012 Stock Options [Member]	Sep. 27, 2014 Restricted Stock Awards [Member] Installment	Sep. 28, 2013 Restricted Stock Awards [Member]	Sep. 29, 2012 Restricted Stock Awards [Member]	Sep. 24, 2011 Restricted Stock Awards [Member]	Sep. 26, 2009 Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of affected employees	250
Percentage of shares covered by performance-based awards	20.00%
Recorded additional compensation cost	$ 0
Percentage of options granted										60.00%
Unvested options		4,000,000
Options subject to performance based vesting criteria		700,000
Number of vesting installments			4			4
Expiration period approximately			6 years
Expected life of option award			3 years 6 months	3 years 6 months	3 years 6 months
Stock price volatility			34.30%	34.80%	37.90%
Risk free interest rates			1.60%	1.20%	0.90%
Dividend during expected term		$ 0
Weighted average grant date fair value of options granted			$ 1.93	$ 1.72	$ 2.72
Total intrinsic value of options exercised			1,400,000	1,100,000	5,100,000
Total unrecognized compensation cost related to nonvested stock options			5,100,000			10,100,000
Nonvested stock options remaining weighted average vesting period			2 years			2 years
Restricted stock awards outstanding, shares						1,609,000	894,000	785,000	804,000
Share based payment award vesting conditional period of employment						1 year
Bonus earned in vested shares						6,400,000
Share based payment award, shares granted and vested						570,000
Granted, Weighted Average Grant Date Fair Value per Share						$ 7.98	$ 9.26	$ 9.16
Aggregate fair value as of the vesting date of restricted shares						$ 1,700,000	$ 3,400,000	$ 900,000

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Weighted average period over which unrecognized compensation is expected to be recognized for equity-based compensation plans, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Unrecognized cost of unvested options awarded to employees as compensation.

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Amount of dividends expected to be paid to holders of the underlying shares or contracted instruments over the term of the instruments life.

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Risk-free interest rate assumption used in valuing an instrument.

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Weighted average expected volatility of stock price.

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Estimated period over which an employee is required to provide service in exchange for the equity-based payment award, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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Expected term of share-based compensation awards, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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An excess of the fair value of the modified award over the fair value of the award immediately before the modification.

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The number of employees affected by the modification of an equity-based compensation plan.

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