Special (Income) Charges (Notes)	12 Months Ended
Mar. 31, 2012
Other Nonrecurring (Income) Expense [Abstract]
Special charges	SPECIAL CHARGES Acquisition Related Expenses During fiscal 2012, special charges included a benefit of $0.7 million of special income comprised of a $1.0 million favorable adjustment to contingent consideration offset by $0.3 million of severance-related charges related to a prior year acquisition. During fiscal 2011, the Company incurred $1.9 million of severance-related and office closing costs associated with the acquisition of SST. Patent Licenses During the fourth quarter of fiscal 2012, the Company agreed to the terms of a patent license with an unrelated third party and signed an agreement on March 20, 2012. The patent license settled alleged infringement claims. The total payment made to the third-party in March 2012 was $2.8 million, $1.5 million of which was expensed in the fourth quarter of fiscal 2012 and the remaining $1.3 million was recorded as a prepaid royalty which will be amortized over the remaining life of the patents, which expires in December 2018. During the first quarter of fiscal 2010, the Company agreed to the terms of a patent license with an unrelated third party and signed an agreement on July 9, 2009. The patent license settled alleged infringement claims. The total payment made to the third-party in July 2009 was $1.4 million, $1.2 million of which was expensed in the first quarter of fiscal 2010 and the remaining $0.2 million was recorded as a prepaid royalty that was amortized over the remaining life of the patents, which expired in June 2010.

SPECIAL CHARGES

Acquisition Related Expenses

During fiscal 2012, special charges included a benefit of $0.7 million of special income comprised of a $1.0 million favorable adjustment to contingent consideration offset by $0.3 million of severance-related charges related to a prior year acquisition. During fiscal 2011, the Company incurred $1.9 million of severance-related and office closing costs associated with the acquisition of SST.

Patent Licenses

During the fourth quarter of fiscal 2012, the Company agreed to the terms of a patent license with an unrelated third party and signed an agreement on March 20, 2012. The patent license settled alleged infringement claims. The total payment made to the third-party in March 2012 was $2.8 million, $1.5 million of which was expensed in the fourth quarter of fiscal 2012 and the remaining $1.3 million was recorded as a prepaid royalty which will be amortized over the remaining life of the patents, which expires in December 2018.

During the first quarter of fiscal 2010, the Company agreed to the terms of a patent license with an unrelated third party and signed an agreement on July 9, 2009. The patent license settled alleged infringement claims. The total payment made to the third-party in July 2009 was $1.4 million, $1.2 million of which was expensed in the first quarter of fiscal 2010 and the remaining $0.2 million was recorded as a prepaid royalty that was amortized over the remaining life of the patents, which expired in June 2010.