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Special Charges - Activity and Liability Balances for Exit Costs (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Jun. 30, 2013
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 1,771
Charged to costs and expenses	9,604
Payments	(2,751)
Ending Balance	8,624
Workforce Reduction [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance
Charged to costs and expenses	9,086
Payments	(2,640)
Ending Balance	6,446
Facilities and Other [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	1,771
Charged to costs and expenses	518
Payments	(111)
Ending Balance	$ 2,178

The charge against earnings in the period, comprised of costs incurred associated with an exit or disposal activity other than for a discontinued operations as defined under generally accepted accounting principles. Costs of such activities include those for one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and costs associated with an ongoing benefit arrangement, but excludes costs associated with the retirement of a long-lived asset.

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- Definition

Amount of cash paid in the period to fully or partially settle a specified, previously accrued type of restructuring cost.

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