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Commitments and Contingencies - Additional Information (Detail) In Millions, unless otherwise specified | 1 Months Ended |  |  | 3 Months Ended |  |  | 1 Months Ended | 3 Months Ended
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Jul. 13, 2010 USD ($) | May 06, 2011 EUR (€) | Apr. 18, 2006 EUR (€) | Mar. 29, 2013 Internal Revenue Service (IRS) | Apr. 05, 2010 Internal Revenue Service (IRS) USD ($) | May 06, 2011 GSI Group GmbH EUR (€) | Apr. 18, 2006 GSI's French Subsidiary | Sep. 30, 2005 GSI's French Subsidiary
Commitments and Contingencies Disclosure [Line Items] |  |  |  |  |  |  |  |
Filed for bankruptcy protection date |  |  |  |  |  |  |  | Jul. 07, 2005
Actions taken |  |  |  |  |  |  | On April 18, 2006, the commercial court of Le Creusot (France) ordered GSI France to pay approximately 0.7 million Euros to SCGI in the context of a claim filed by SCGI that a Laserdyne 890 system delivered in 1999 had unresolved technical problems. |
Payment to settle claim filed, minimum |  |  | € 0.7 |  |  |  |  |
Payment to settle claim filed, maximum |  | 3.1 |  |  |  |  |  |
Payment in the respect of a claim filed |  |  |  |  |  | 2.4 |  |
IRS filed amended proofs of claim date |  |  |  | April 5, 2010 |  |  |  |
IRS filed aggregate claims |  |  |  |  | 7.7 |  |  |
IRS Claims | On July 13, 2010, the Company filed a complaint, GSI Group Corporation v. United States of America, in Bankruptcy Court in an attempt to recover refunds totaling approximately $18.8 million in federal income taxes the Company asserts it overpaid to the IRS relating to tax years 2000 through 2008, together with applicable interest. |  |  |  |  |  |  |
Amount of claim we filed with the IRS for federal income taxes overpaid | $ 18.8 |  |  |  |  |  |  |

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