Income Taxes - Additional Information (Detail) - USD ($)		12 Months Ended
	Jan. 02, 2017	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Income Taxes [Line Items]
Federal corporate income tax rate		21.00%
Cash tax payments for transition tax		$ 0
Tax Cuts and Jobs Act of 2017, Incomplete Accounting, Change in tax rate deferred tax liability, income tax benefit				$ 1,693,000
Change in total valuation allowance		2,499,000	$ 6,124,000	6,458,000
Interest and penalties related to uncertain tax positions		0	0	$ 0
Unrecognized tax benefits recorded as reduction to operating loss tax carryforwards		775,000
Foreign Subsidiaries [Member]
Income Taxes [Line Items]
Earnings related to deferred income tax		21,677,000
Federal [Member]
Income Taxes [Line Items]
Net operating loss carryforwards		$ 125,870,000	108,746,000
Net operating loss carryforwards expiration date		2037
State [Member]
Income Taxes [Line Items]
Net operating loss carryforwards		$ 159,083,000	232,256,000
Net operating loss carryforwards expiration date		2039
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Net operating loss carryforwards		$ 14,035,000	$ 15,989,000
Net operating loss carryforwards expiration date		2039
Foreign Tax Authority [Member] | Earliest Tax Year [Member]
Income Taxes [Line Items]
Income tax examinations, year		2015
ASU 2016-09 [Member]
Income Taxes [Line Items]
Gross amount of windfall deductions previously not recognized	$ 6,529,000
Acquired Goodwill [Member]
Income Taxes [Line Items]
Useful life (years)		15 years
Maximum [Member]
Income Taxes [Line Items]
Federal corporate income tax rate				35.00%