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Selected Balance Sheet Data - Components of Deferred Compensation and Commissions (Detail) - USD ($) $ in Thousands | Mar. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Deferred Compensation and Commissions [Line Items] |  |
Stock appreciation rights ("SARs") liability, current | $ 2,225 | $ 2,162
Commissions payable to investment sales and financing professionals, current | 29,054 | 54,082
Deferred compensation liability, current | 1,485 | 1,519
Other, current | 435 | 343
Deferred compensation and commissions, current | 33,199 | 58,106
Stock appreciation rights ("SARs") liability, non-current | 14,568 | 16,671
Commissions payable to investment sales and financing professionals, non-current | 7,389 | 15,306
Deferred compensation liability, non-current | 6,788 | 6,768
Other, non-current | 0 | 0
Deferred compensation and commissions, non-current | $ 28,745 | $ 38,745

X
- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for sales commissions. + References No definition available. + Details
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X
- Definition Aggregate carrying value as of the balance sheet date of the non-current liabilities for deferred compensation arrangements related to Rabbi Trust, deferred commissions payable and other commissions related obligations and SARs Liability. + References No definition available. + Details
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- Definition Aggregate carrying value as of the balance sheet date of the liabilities for deferred compensation arrangements related to Rabbi Trust, deferred commissions payable and other commissions related obligations and SARs Liability. + References No definition available. + Details
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- Definition Aggregate carrying value (includes principal and accrued interest) as of the balance sheet date of current deferred compensation associated with Stock Appreciation Rights payable to each participant in installments upon retirement or departure under terms of the agreement. + References No definition available. + Details
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- Definition Carrying value as of the balance sheet date of obligations incurred through that date and payable for sales commissions. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6911-107765 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 45 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121566466&loc=d3e6935-107765 + Details
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