Income Taxes - Additional Information (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Taxes [Line Items]
Federal corporate income tax rate	21.00%	21.00%	35.00%
Deferred tax assets and liabilities income tax rate expected to reverse in future	26.30%
Increase in deferred tax provision for income taxes, including adjustments to valuation allowances		$ 1,000,000.0
Increase in valuation allowance	$ 1,000,000.0
Increase in cumulative foreign tax credit carryforward	1,000,000.0
Income taxes provided for additional outside basis difference inherent in entities as result of reinvestment	$ 2,700,000
Operating loss carryforwards expiration term	20 years
Deferred tax assets, valuation allowance	$ 5,374,000	5,112,000	$ 1,636,000	$ 1,131,000
Valuation allowance, deferred tax asset, increase (decrease), amount	262,000	3,476,000	505,000
Unrecognized tax benefits	0	216,000	$ 820,000	$ 1,185,000
Unrecognized tax benefits that would impact effective tax rate	0	200,000
Unrecognized tax benefits, income tax penalties and interest accrued	$ 0	0
Earliest Tax Year | Internal Revenue Service (IRS)
Income Taxes [Line Items]
Open tax year	2016
Earliest Tax Year | State and Foreign Jurisdictions
Income Taxes [Line Items]
Open tax year	2015
Latest Tax Year | Internal Revenue Service (IRS)
Income Taxes [Line Items]
Open tax year	2018
Latest Tax Year | State and Foreign Jurisdictions
Income Taxes [Line Items]
Open tax year	2018
Foreign Tax Authority
Income Taxes [Line Items]
Operating loss carryforwards	$ 2,500,000	3,500,000
Deferred tax assets, valuation allowance	900,000	1,100,000
Valuation allowance, deferred tax asset, increase (decrease), amount	4,500,000
Domestic Tax Authority
Income Taxes [Line Items]
Operating loss carryforwards	$ 8,200,000
Net operating loss carryforwards, expiration year	2034
State and Local Jurisdiction
Income Taxes [Line Items]
Tax credit carryforward, amount	$ 2,600,000
Deferred tax assets, tax credit carryforwards	$ 2,026,000	$ 2,041,000
State and Local Jurisdiction | Earliest Tax Year
Income Taxes [Line Items]
Tax credit carryforwards, expiration year	2021
State and Local Jurisdiction | Latest Tax Year
Income Taxes [Line Items]
Tax credit carryforwards, expiration year	2029