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Reorganization - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended
	Jun. 30, 2014	Mar. 31, 2014	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2013 Employee
Restructuring And Related Activities [Abstract]
Severance and related costs	$ 1.0	$ 0.8	$ 0.3	$ 1.6	$ 1.9
Percentage of workforce reduction		1.00%			2.50%
Number of additional employees terminated related to sales reorganization and other cost reduction initiatives					31

Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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