SUBSEQUENT EVENTS (UNAUDITED)	12 Months Ended
Mar. 31, 2012
Subsequent Events [Abstract]
SUBSEQUENT EVENTS (UNAUDITED)	SUBSEQUENT EVENTS (UNAUDITED) On April 28, 2012, Haemonetics Corporation entered into an Asset Purchase Agreement (the “Purchase Agreement”) with Pall Corporation (“Pall”), pursuant to which Haemonetics agreed to acquire from Pall (i) substantially all of the assets relating to its blood collection, filtration, processing, storage and re-infusion product lines, and (ii) all of the outstanding equity interest in Pall Mexico Manufacturing, S. de R.L. de C.V, a subsidiary of Pall based in Mexico (collectively, the “Product Lines” and such transaction, the “Transaction”). At the closing of the Transaction, subject to adjustments (upward or downward) to reflect (i) the audited adjusted operating income of the Product Lines before depreciation, amortization and non-cash restructuring charges for Pall's fiscal year ended July 31, 2011, and (ii) the amount of actual Product Line inventory being acquired, Haemonetics will pay to Pall $551 million in cash consideration, subject to a holdback of $15 million, which will be payable upon the replication and delivery of certain manufacturing assets of Pall's filter media business to Haemonetics by 2016. Until that time, Pall will manage these assets under a supply agreement with Haemonetics. The Purchase Agreement includes customary representations, warranties and covenants of Pall and Haemonetics, as well as indemnification provisions for breaches or inaccuracies in either party's representations and warranties or covenants. Under the Purchase Agreement, Pall has agreed to operate the Product Lines in the ordinary course of business consistent with past practice until the closing of the Transaction. In addition, Pall will be restricted from discussing or otherwise agreeing to a competing transaction with respect to the Product Lines, and Haemonetics will be restricted from discussing or otherwise agreeing to acquire any assets, entities, businesses or product lines that compete with the Product Lines, or from acquiring any assets or entities if such acquisition could reasonably be expected to increase the risk of not obtaining necessary governmental approvals or to materially delay the completion of the Transaction. The Transaction is expected to close in the second quarter of Haemonetics' fiscal 2013, subject to the conditions precedent set forth in the Purchase Agreement, receipt of necessary regulatory and third-party approvals and labor-related notifications, as well as a period of confirmatory due diligence by Haemonetics. If in the course of conducting such confirmatory due diligence, Haemonetics discovers matters or issues that would adversely affect the Product Lines above certain thresholds, Haemonetics will have the right to terminate the Purchase Agreement. The Purchase Agreement also includes other customary termination provisions for both Haemonetics and Pall and provides that if, after all closing conditions are satisfied, one party refuses to consummate the Transaction, the other party will be entitled to a termination fee in an amount equal to $17 million, which will be the sole and exclusive remedy in such circumstances. Haemonetics intends to finance the purchase price primarily with $475 million of new borrowings under term loans. JPMorgan Chase Bank N.A. and Citibank N.A. (together, the “Lenders”) have committed to provide Haemonetics a term loan facility in an initial aggregate principal amount of $475 million, and J.P. Morgan Securities LLC and Citibank, N.A. have agreed to use commercially reasonable efforts to syndicate a revolving credit facility in a maximum aggregate principal amount of $50 million, both of which facilities will be unsecured, on the terms and subject to the conditions set forth in a debt commitment letter (the “Debt Commitment Letter”). The obligation of the Lenders to provide debt financing under the Debt Commitment Letter is subject to a number of conditions, including, among other things, (i) no material adverse condition or material adverse change in or affecting the business, property, financial condition or operations of Haemonetics and its subsidiaries (both before and, on a pro forma basis, after giving effect to the Transaction), taken as a whole, (ii) the execution and delivery of definitive financing documentation and other customary closing certificates, documents and instruments, (iii) the Transaction being consummated pursuant to the Purchase Agreement, with no provision of the Purchase Agreement having been amended or waived in a manner materially adverse to the Lenders, and (iv) Haemonetics having demonstrated that it will be in pro forma compliance with all financial covenants. The final termination date for the Debt Commitment Letter is August 1, 2012. Also, on April 28, 2012, Haemonetics announced that it had entered into a definitive agreement to acquire the business assets of Hemerus Medical, LLC, a Minnesota-based company that develops innovative technologies for the collection of whole blood, and processing and storage of blood components. Hemerus has completed Phase 3 clinical trials and has submitted a New Drug Application to the FDA for its unique, patented SOLX® whole blood collection system. This system's features include a collection set and a storage solution that is believed to considerably extend the quality and effective life of red blood cells. Hemerus expects FDA approval in calendar year 2012. The storage solution is the result of research partially funded by the US Army, and invented by Dr. John Hess of the University of Maryland, and the late Dr. Tibor Greenwalt of the University of Cincinnati. Hemerus holds the exclusive worldwide license to the intellectual property and furthered this research through the development of a whole blood collection set and clinical trials. Under terms of the agreement, Haemonetics will pay up to $27 million in several stages, each of which is contingent upon successful regulatory approvals of SOLX. Additionally, Haemonetics has agreed to pay a royalty on future sales of SOLX based products. The acquisition is expected to close during the second quarter of fiscal 2013.

SUBSEQUENT EVENTS (UNAUDITED)

On April 28, 2012, Haemonetics Corporation entered into an Asset Purchase Agreement (the “Purchase Agreement”) with Pall Corporation (“Pall”), pursuant to which Haemonetics agreed to acquire from Pall (i) substantially all of the assets relating to its blood collection, filtration, processing, storage and re-infusion product lines, and (ii) all of the outstanding equity interest in Pall Mexico Manufacturing, S. de R.L. de C.V, a subsidiary of Pall based in Mexico (collectively, the “Product Lines” and such transaction, the “Transaction”).

At the closing of the Transaction, subject to adjustments (upward or downward) to reflect (i) the audited adjusted operating income of the Product Lines before depreciation, amortization and non-cash restructuring charges for Pall's fiscal year ended July 31, 2011, and (ii) the amount of actual Product Line inventory being acquired, Haemonetics will pay to Pall $551 million in cash consideration, subject to a holdback of $15 million, which will be payable upon the replication and delivery of certain manufacturing assets of Pall's filter media business to Haemonetics by 2016. Until that time, Pall will manage these assets under a supply agreement with Haemonetics.

The Purchase Agreement includes customary representations, warranties and covenants of Pall and Haemonetics, as well as indemnification provisions for breaches or inaccuracies in either party's representations and warranties or covenants. Under the Purchase Agreement, Pall has agreed to operate the Product Lines in the ordinary course of business consistent with past practice until the closing of the Transaction. In addition, Pall will be restricted from discussing or otherwise agreeing to a competing transaction with respect to the Product Lines, and Haemonetics will be restricted from discussing or otherwise agreeing to acquire any assets, entities, businesses or product lines that compete with the Product Lines, or from acquiring any assets or entities if such acquisition could reasonably be expected to increase the risk of not obtaining necessary governmental approvals or to materially delay the completion of the Transaction.

The Transaction is expected to close in the second quarter of Haemonetics' fiscal 2013, subject to the conditions precedent set forth in the Purchase Agreement, receipt of necessary regulatory and third-party approvals and labor-related notifications, as well as a period of confirmatory due diligence by Haemonetics. If in the course of conducting such confirmatory due diligence, Haemonetics discovers matters or issues that would adversely affect the Product Lines above certain thresholds, Haemonetics will have the right to terminate the Purchase Agreement. The Purchase Agreement also includes other customary termination provisions for both Haemonetics and Pall and provides that if, after all closing conditions are satisfied, one party refuses to consummate the Transaction, the other party will be entitled to a termination fee in an amount equal to $17 million, which will be the sole and exclusive remedy in such circumstances.

Haemonetics intends to finance the purchase price primarily with $475 million of new borrowings under term loans. JPMorgan Chase Bank N.A. and Citibank N.A. (together, the “Lenders”) have committed to provide Haemonetics a term loan facility in an initial aggregate principal amount of $475 million, and J.P. Morgan Securities LLC and Citibank, N.A. have agreed to use commercially reasonable efforts to syndicate a revolving credit facility in a maximum aggregate principal amount of $50 million, both of which facilities will be unsecured, on the terms and subject to the conditions set forth in a debt commitment letter (the “Debt Commitment Letter”). The obligation of the Lenders to provide debt financing under the Debt Commitment Letter is subject to a number of conditions, including, among other things, (i) no material adverse condition or material adverse change in or affecting the business, property, financial condition or operations of Haemonetics and its subsidiaries (both before and, on a pro forma basis, after giving effect to the Transaction), taken as a whole, (ii) the execution and delivery of definitive financing documentation and other customary closing certificates, documents and instruments, (iii) the Transaction being consummated pursuant to the Purchase Agreement, with no provision of the Purchase Agreement having been amended or waived in a manner materially adverse to the Lenders, and (iv) Haemonetics having demonstrated that it will be in pro forma compliance with all financial covenants. The final termination date for the Debt Commitment Letter is August 1, 2012.

Also, on April 28, 2012, Haemonetics announced that it had entered into a definitive agreement to acquire the business assets of Hemerus Medical, LLC, a Minnesota-based company that develops innovative technologies for the collection of whole blood, and processing and storage of blood components. Hemerus has completed Phase 3 clinical trials and has submitted a New Drug Application to the FDA for its unique, patented SOLX® whole blood collection system.

This system's features include a collection set and a storage solution that is believed to considerably extend the quality and effective life of red blood cells. Hemerus expects FDA approval in calendar year 2012. The storage solution is the result of research partially funded by the US Army, and invented by Dr. John Hess of the University of Maryland, and the late Dr. Tibor Greenwalt of the University of Cincinnati. Hemerus holds the exclusive worldwide license to the intellectual property and furthered this research through the development of a whole blood collection set and clinical trials.

Under terms of the agreement, Haemonetics will pay up to $27 million in several stages, each of which is contingent upon successful regulatory approvals of SOLX. Additionally, Haemonetics has agreed to pay a royalty on future sales of SOLX based products. The acquisition is expected to close during the second quarter of fiscal 2013.