Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Income Taxes [Line Items]
Net operating loss carryforwards, foreign	$ 37.3
Foreign related tax credits	3.4
California enterprise zone tax credits	6.3
Tax credit carry forwards expected to be utilized	3.2
Deferred income taxes, undistributed foreign earnings	2.8	2.2
Impact of repatriation, net of foreign tax credits	0	0
Unrecognized tax benefits, impact on effective tax rate	1.3	1.0	2.7
Accrued interest and penalties	2.8	3.1	5.3
Increase (decrease) in income tax expense	(0.3)	(2.3)	0.3
Unrecognized tax benefits, gross	$ 2.2
Foreign Countries
Income Taxes [Line Items]
Net operating loss carry forwards expiring in and beyond the stated year	Expire in 2014 and later
Tax credit carry forwards expiring in and beyond the stated year	Expire in 2023
California enterprise zone [Member]
Income Taxes [Line Items]
Tax credit carry forwards expiring in and beyond the stated year	Expire in 2023
Tax credit carry forwards, expiration period	10 years