Special Charges (Notes)	12 Months Ended
Mar. 31, 2014
Other Nonrecurring (Income) Expense [Abstract]
Special charges	SPECIAL CHARGES Acquisition Related Expenses During fiscal 2014, the Company incurred special charges of $3.0 million related to severance, office closing and other costs associated with its acquisition activity. During fiscal 2013, the Company incurred special charges of $32.2 million comprised of a $4.4 million net increase in the fair value of contingent consideration related to one of its acquisitions, $16.3 million of primarily severance-related costs in addition to office closing and other costs associated with the acquisition of SMSC and legal settlement costs of approximately $11.5 million for certain legal matters related to SST (which the Company acquired in April 2010) in excess of previously accrued amounts. 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. 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.

SPECIAL CHARGES

Acquisition Related Expenses

During fiscal 2014, the Company incurred special charges of $3.0 million related to severance, office closing and other costs associated with its acquisition activity. During fiscal 2013, the Company incurred special charges of $32.2 million comprised of a $4.4 million net increase in the fair value of contingent consideration related to one of its acquisitions, $16.3 million of primarily severance-related costs in addition to office closing and other costs associated with the acquisition of SMSC and legal settlement costs of approximately $11.5 million for certain legal matters related to SST (which the Company acquired in April 2010) in excess of previously accrued amounts. 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.

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.