Contingencies	9 Months Ended
Jun. 30, 2011
Contingencies [Abstract]
Contingencies	17. Contingencies On August 22, 2006, an action captioned as Mark Levy v. Robert J. Therrien and Brooks Automation, Inc., was filed in the United States District Court for the District of Delaware, seeking recovery, on behalf of Brooks, from Mr. Therrien (the Company’s former Chairman and CEO) under Section 16(b) of the Exchange Act for alleged “short-swing” profits earned by Mr. Therrien due to the loan and stock option exercise in November 1999, and a sale by Mr. Therrien of Brooks stock in March 2000. The complaint sought disgorgement of all profits earned by Mr. Therrien on the transactions, attorneys’ fees and other expenses. On February 20, 2007, a second Section 16(b) action, concerning the same loan and stock option exercise in November 1999 discussed above and seeking the same remedy, was filed in the United States District Court of the District of Delaware, captioned Aron Rosenberg v. Robert J. Therrien and Brooks Automation, Inc. On April 4, 2007, the court issued an order consolidating the Levy and Rosenberg actions (the “Section 16(b) Action”). On February 24, 2011, the parties executed a settlement agreement which, upon court approval, would resolve the Section 16(b) Action. Pursuant to this agreement, Mr. Therrien sold 150,000 shares of Brooks stock, the proceeds of which form the settlement fund and totaled approximately $1.9 million. The plaintiffs agreed to seek a fee not exceeding 30 percent of this settlement fund, the remainder of which would be delivered to the Company following court approval. Notice of the proposed settlement, which described the proposed settlement in further detail, was mailed to shareholders of record as of March 31, 2011. In connection with the agreement to settle the Section 16(b) Action, the Company reached an agreement with Mr. Therrien and the Company’s former Directors and Officers Liability Insurance Carriers (the “Global Settlement Agreement”) to resolve (1) Mr. Therrien’s civil litigation with the United States Securities and Exchange Commission (“SEC”), (2) any of the Company’s advancement or indemnification obligations to Mr. Therrien in connection with that matter, and (3) the Company’s claim against these insurance carriers for reimbursement of certain defense costs which the Company paid to Mr. Therrien pursuant to his indemnification agreement with the Company. Pursuant to the Global Settlement Agreement, Mr. Therrien agreed to enter into a settlement with the SEC. If approved by the SEC and the court in that matter, in addition to delivering to the Company the net proceeds of the sale of 150,000 shares of Brooks stock in connection with the Section 16(b) matter, Mr. Therrien would pay the SEC approximately $728,000 in disgorgement and $100,000 in fines. To resolve any indemnification claim by Mr. Therrien against the Company in connection with this matter, the Company has agreed to reimburse him $500,000 towards his disgorgement payment. Finally, upon resolution of both the Section 16(b) matter and the SEC matter, the Company’s insurers have agreed to pay Brooks a net sum of approximately $3.4 million. This payment would resolve any claim the Company may have against its former insurers for certain defense costs paid to Mr. Therrien. On May 17, 2011, the court in the Section 16(b) Action held a hearing to determine the fairness of the proposed settlement in that action. Following the hearing, the court approved that settlement, finding that the settlement in the Section 16(b) Action and the Global Settlement Agreement were both in the best interest of the parties and the Company’s shareholders. On June 16, 2011, the settlement of the Section 16(b) Action became final and the Company received $1.3 million in settlement proceeds of which 50% will be paid to the Company’s insurance company and the remaining 50% has been recorded as income. Mr. Therrien has agreed to and submitted a proposed settlement to the SEC for approval by the Commission, which must also be approved by the court before it becomes final. If this settlement becomes final, then the contingencies within the Global Settlement Agreement will be satisfied, which will have the effect of resolving all pending litigation related to the Company’s past stock option granting practices, and the Company would expect to record income of approximately $4 million upon final resolution, inclusive of the $0.7 million previously recognized.

17. Contingencies

On August 22, 2006, an action captioned as Mark Levy v. Robert J. Therrien and Brooks Automation, Inc., was filed in the United States District Court for the District of Delaware, seeking recovery, on behalf of Brooks, from Mr. Therrien (the Company’s former Chairman and CEO) under Section 16(b) of the Exchange Act for alleged “short-swing” profits earned by Mr. Therrien due to the loan and stock option exercise in November 1999, and a sale by Mr. Therrien of Brooks stock in March 2000. The complaint sought disgorgement of all profits earned by Mr. Therrien on the transactions, attorneys’ fees and other expenses. On February 20, 2007, a second Section 16(b) action, concerning the same loan and stock option exercise in November 1999 discussed above and seeking the same remedy, was filed in the United States District Court of the District of Delaware, captioned Aron Rosenberg v. Robert J. Therrien and Brooks Automation, Inc. On April 4, 2007, the court issued an order consolidating the Levy and Rosenberg actions (the “Section 16(b) Action”).

On February 24, 2011, the parties executed a settlement agreement which, upon court approval, would resolve the Section 16(b) Action. Pursuant to this agreement, Mr. Therrien sold 150,000 shares of Brooks stock, the proceeds of which form the settlement fund and totaled approximately $1.9 million. The plaintiffs agreed to seek a fee not exceeding 30 percent of this settlement fund, the remainder of which would be delivered to the Company following court approval. Notice of the proposed settlement, which described the proposed settlement in further detail, was mailed to shareholders of record as of March 31, 2011.

In connection with the agreement to settle the Section 16(b) Action, the Company reached an agreement with Mr. Therrien and the Company’s former Directors and Officers Liability Insurance Carriers (the “Global Settlement Agreement”) to resolve (1) Mr. Therrien’s civil litigation with the United States Securities and Exchange Commission (“SEC”), (2) any of the Company’s advancement or indemnification obligations to Mr. Therrien in connection with that matter, and (3) the Company’s claim against these insurance carriers for reimbursement of certain defense costs which the Company paid to Mr. Therrien pursuant to his indemnification agreement with the Company. Pursuant to the Global Settlement Agreement, Mr. Therrien agreed to enter into a settlement with the SEC. If approved by the SEC and the court in that matter, in addition to delivering to the Company the net proceeds of the sale of 150,000 shares of Brooks stock in connection with the Section 16(b) matter, Mr. Therrien would pay the SEC approximately $728,000 in disgorgement and $100,000 in fines. To resolve any indemnification claim by Mr. Therrien against the Company in connection with this matter, the Company has agreed to reimburse him $500,000 towards his disgorgement payment. Finally, upon resolution of both the Section 16(b) matter and the SEC matter, the Company’s insurers have agreed to pay Brooks a net sum of approximately $3.4 million. This payment would resolve any claim the Company may have against its former insurers for certain defense costs paid to Mr. Therrien.

On May 17, 2011, the court in the Section 16(b) Action held a hearing to determine the fairness of the proposed settlement in that action. Following the hearing, the court approved that settlement, finding that the settlement in the Section 16(b) Action and the Global Settlement Agreement were both in the best interest of the parties and the Company’s shareholders. On June 16, 2011, the settlement of the Section 16(b) Action became final and the Company received $1.3 million in settlement proceeds of which 50% will be paid to the Company’s insurance company and the remaining 50% has been recorded as income. Mr. Therrien has agreed to and submitted a proposed settlement to the SEC for approval by the Commission, which must also be approved by the court before it becomes final. If this settlement becomes final, then the contingencies within the Global Settlement Agreement will be satisfied, which will have the effect of resolving all pending litigation related to the Company’s past stock option granting practices, and the Company would expect to record income of approximately $4 million upon final resolution, inclusive of the $0.7 million previously recognized.