Income Taxes - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Loss Carryforwards [Line Items]
Federal income tax rate	35.00%	34.00%	34.00%
Federal net operating loss carryforwards expiration period start	2020
Federal net operating loss carryforwards expiration period end	2033
State operating loss carryforwards expiration period start	2016
State net operating loss carryingforwards period end	2033
State net operating loss carryingforwards expiration year	2016
State net operating loss carryingforwards expiring in initial year	$ 3,600,000
Gross deferred tax assets attributable to stock option exercises and vesting of restricted stock units	2,100,000	$ 3,600,000
Valuation allowance	1,200,000	1,400,000
Reversal of valuation allowance	144,000,000
Unrecognized tax benefits due to uncertain tax positions	6,300,000	6,400,000	$ 6,400,000
Unrecognized tax benefits which would effect effective tax rate if recognized	800,000
Decrease in unrecognized tax benefits from settlement	100,000
Accrued interest and penalties related to uncertain tax positions	0
New York Tax Authority
Operating Loss Carryforwards [Line Items]
Decrease in unrecognized tax benefits from settlement	$ 100,000
New York Tax Authority | Earliest Tax Year
Operating Loss Carryforwards [Line Items]
Income tax year under examination	2004
New York Tax Authority | Latest Tax Year
Operating Loss Carryforwards [Line Items]
Income tax year under examination	2006
Stock Options And Restricted Stock Units
Operating Loss Carryforwards [Line Items]
Gross deferred tax assets attributable to stock option exercises and vesting of restricted stock units	$ 4,600,000	$ 3,600,000
Domestic Tax Authority
Operating Loss Carryforwards [Line Items]
Federal Net operating loss carrying forward	325,000,000
State and Local Jurisdiction
Operating Loss Carryforwards [Line Items]
Federal Net operating loss carrying forward	$ 219,000,000
Foreign Tax Authority | Argentina
Operating Loss Carryforwards [Line Items]
Income tax year under examination	2014
Foreign Tax Authority | Earliest Tax Year | Mexico
Operating Loss Carryforwards [Line Items]
Income tax year under examination	2004
Foreign Tax Authority | Latest Tax Year | Mexico
Operating Loss Carryforwards [Line Items]
Income tax year under examination	2014