Income Taxes - Additional Information (Detail) (USD $)	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Income Taxes [Line Items]
Effective tax rate for income from continuing operations	19.90%	41.30%	31.50%
Net unrecognized benefits that may be recognized	$ 1,029,000	$ 870,000	$ 822,000
Translation Adjustment Functional to Reporting Currency, Tax Benefit (Expense)			4,000,000
Tax Expense Associated With Expected Realisation Of Foreign Tax Credits	100,000
Valuation allowance	3,587,000	7,132,000
Deferred Tax Assets, Operating Loss Carryforwards, State and Local	13,500,000
Tax credit carrforward	State net operating loss carryforwards expire between 2014 and 2032.
Tax Credit Carryforward Reversal Of Valuation Allowance	3,900,000
Reversal Of Valuation Allowances State Net Operating Loss Carryovers	500,000
Net unrecognized benefits that may be recognized	1,029,000	870,000	822,000
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	700,000
Tax Expense Associated With Offset By Valuation Allowance Against Foreign Tax Credit Carry Overs			900,000
Tax Expense Associated With Offset By Valuation Allowance Against F State Net Operating Loss Carryovers			3,000,000
State and Local Jurisdiction [Member]
Income Taxes [Line Items]
Tax credit carryforward, amount	3,200,000
Tax credit carrforward	State tax credit carryforwards that expire between 2013 and 2027.
Foreign Tax Credits [Member]
Income Taxes [Line Items]
Tax Credit Carryforward Reversal Of Valuation Allowance	2,900,000
Future Benefits [Member]
Income Taxes [Line Items]
Tax Credit Carryforward Reversal Of Valuation Allowance	1,000,000
Foreign [Member]
Income Taxes [Line Items]
Tax credit carryforward, amount	1,400,000
Tax credit carrforward	Foreign tax credit carryforwards that expire between 2020 and 2021.
Frances [Member]
Income Taxes [Line Items]
Net operating loss carryover	4,700,000
Netherlands [Member]
Income Taxes [Line Items]
Tax credit carrforward	Net operating losses expire between the years 2015 and 2019.
Net operating loss carryover	$ 7,500,000