Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014
Income Tax Disclosure [Abstract]
Foreign undistributed earnings	$ 18.4
Federal net operating loss carryforwards	42.1
State net operating loss carryforwards	71.2
Research and development tax carryforwards	4.4
Foreign net operating loss carryforwards	$ 22.4