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Pay vs Performance Disclosure Unit_pure in Millions | 12 Months Ended
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Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2020 USD ($)
Pay vs Performance Disclosure [Table] |  |  |
Pay vs Performance [Table Text Block] | Pay Versus Performance As required by Section 953(a) of the Dodd-Frank Wall Street Reform and Consu mer Protection Act, and Item 402(v) of Regulation S-K , we are providing the following information about the relationship between executive compensation actually paid and certain financial performance of the Company. For further information concerning the Company’s variable pay-for-performance philosophy and how the Company aligns executive compensation with the Company’s performance, refer to “Compensation Discussion and Analysis.”
Year |  | Summary Compensation Table Total for PEO (1) |  |  | Compensation Actually Paid to PEO (2) |  |  | Average Summary Compensation Table Total for Non-PEO NEOs (3) |  |  | Average Compensation Actually Paid to Non-PEO NEOs (4) |  |  | Value of Initial Fixed $100 Investment Based On: |  |  | Net Income (millions) (7) |  |  | Pre-Tax Net Income (millions) (8) |
| Total Shareholder Return (5) |  |  | Peer Group Total Shareholder Return (6) |
(a) |  | (b) |  |  | (c) |  |  | (d) |  |  | (e) |  |  | (f) |  |  | (g) |  |  | (h) |  |  | (i) |
2022 |  | $ | 7,532,900 |  |  | $ | 3,519,692 |  |  | $ | 3,698,899 |  |  | $ | 2,691,110 |  |  | $ | 95.24 |  |  | $ | 106.44 |  |  | $ | 104.2 |  |  | $ | 142.0 |
2021 |  | $ | 8,224,777 |  |  | $ | 10,965,723 |  |  | $ | 2,572,998 |  |  | $ | 2,981,491 |  |  | $ | 138.15 |  |  | $ | 163.37 |  |  | $ | 142.5 |  |  | $ | 193.3 |
2020 |  | $ | 5,257,504 |  |  | $ | 5,059,672 |  |  | $ | 714,373 |  |  | $ | 749,696 |  |  | $ | 99.95 |  |  | $ | 93.48 |  |  | $ | 42.8 |  |  | $ | 59.4 |
(1) | The dollar amounts reported in column (b) are the amounts of total compensation reported for Mr. Nadji (our President and Chief Executive Officer) (the “PEO”) for each corresponding year in the “Total” column of the Summary Compensation Table. Refer to “Summary Compensation Table for Fiscal Year 2022.”
(2) | The dollar amounts reported in column (c) represent the amount of “compensation actually paid” to Mr. Nadji, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Mr. Nadji during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to Mr. Nadji’s total compensation for each year to determine the compensation actually paid:
Year |  | Reported Summary Compensation Table Total for PEO |  |  | Reported Value of Equity Awards (a) |  |  | Equity Award Adjustments (b) |  |  | Compensation Actually Paid to PEO |
2022 |  | $ | 7,532,900 |  |  | $ | 4,350,680 |  |  | $ | 337,472 |  |  | $ | 3,519,692 |
2021 |  | $ | 8,224,777 |  |  | $ | 3,597,200 |  |  | $ | 6,338,146 |  |  | $ | 10,965,723 |
2020 |  | $ | 5,257,504 |  |  | $ | 3,376,400 |  |  | $ | 3,178,568 |  |  | $ | 5,059,672 |
(a) | The grant date fair value of equity awards represents the total of the amounts reported in the “Stock Awards” column in the Summary Compensation Table for the applicable year.
(b) | The equity award adjustments for each applicable fiscal year include the addition (or subtraction, as applicable) of the following:
(i) the year-end fair value (computed consistent with the methodology used for share-based payments under U.S. GAAP) of any equity awards granted in the applicable year that are outstanding and unvested as of the end of the year; (ii) the amount of change as of the end of the applicable year (from the end of the prior fiscal year) in fair value of any awards granted in prior years that are outstanding and unvested as of the end of the applicable year; (iii) for awards that are granted and vest in the same applicable year, the fair value as of the vesting date; (iv) for awards granted in prior years that vest in the applicable year, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in fair value; (v) for awards granted in prior years that are determined to fail to meet the applicable vesting conditions during the applicable year, a deduction for the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock or option awards in the applicable year prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for the applicable year. The valuation assumptions used to calculate fair values did not materially differ from those disclosed at the time of grant. The amounts deducted or added in calculating the equity award adjustments are as follows:
Year |  | (i) Year End Fair Value of Outstanding and Unvested Equity Awards Granted in the Year |  |  | (ii) Year over Year Change in Fair Value of Outstanding and Unvested Equity Awards Granted in Prior Years |  |  | (iii) Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year |  |  | (iv) Change in Fair Value from End of the Prior Year to Vesting Date of Equity Awards Granted in Prior Years that Vested in the Year |  |  | (v) Fair Value at the End of the Prior Year of Equity Awards that Failed to Meet Vesting Conditions in the Year |  |  | (vi) Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation |  |  | Total Equity Award Adjustments |
2022 |  | $ | 3,169,400 |  |  |  | ($2,588,010 | ) |  | $ | — |  |  |  | ($243,918 | ) |  | $ | — |  |  | $ | — |  |  | $ | 337,472 |
2021 |  | $ | 4,581,600 |  |  |  | $1,856,196 |  |  | $ | — |  |  |  | ($99,650 | ) |  | $ | — |  |  | $ | — |  |  | $ | 6,338,146 |
2020 |  | $ | 3,314,760 |  |  |  | ($826 | ) |  | $ | — |  |  |  | ($135,366 | ) |  | $ | — |  |  | $ | — |  |  | $ | 3,178,568 |
(3) | The dollar amounts reported in column (d) represent the average of the amounts reported for the Company’s NEOs as a group (excluding Mr. Nadji, who has served as our CEO since April 2016) in the “Total” column of the Summary Compensation Table in each applicable year. The names of each of the NEOs (excluding Mr. Nadji) included for purposes of calculating the average amounts in each applicable year are as follows: (i) for 2022, Steven F. DeGennaro, Richard Matricaria, John David Parker, and Gregory A. LaBerge; (ii) for 2021, Steven F. DeGennaro, Richard Matricaria, John David Parker, and Gregory A. LaBerge; and (iii) for 2020, Steven F. DeGennaro, Martin E. Louie, and Gregory A. LaBerge.
(4) | The dollar amounts reported in column (e) represent the average amount of “compensation actually paid” to the NEOs as a group (excluding Mr. Nadji), as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs as a group (excluding Mr. Nadji) during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to average total compensation for the NEOs as a group (excluding Mr. Nadji) for each year to determine the compensation actually paid, using the same methodology described above in Note 2:
Year |  | Average Reported Summary Compensation Table Total for Non-PEO NEOs |  |  | Average Reported Value of Equity Awards |  |  | Average Equity Award Adjustments (a) |  |  | Average Compensation Actually Paid to Non-PEO NEOs |
2022 |  | $ | 3,698,899 |  |  | $ | 2,229,889 |  |  | $ | 1,222,100 |  |  | $ | 2,691,110 |
2021 |  | $ | 2,572,998 |  |  | $ | 548,280 |  |  | $ | 956,773 |  |  | $ | 2,981,491 |
2020 |  | $ | 714,373 |  |  | $ | 179,888 |  |  | $ | 215,211 |  |  | $ | 749,696 |
(a) | The amounts deducted or added in calculating the total average equity award adjustments are as follows:
Year |  | (i) Average Year End Fair Value of Outstanding and Unvested Equity Awards Granted in the Year |  |  | (ii) Year over Year Average Change in Fair Value of Outstanding and Unvested Equity Awards Granted in Prior Years |  |  | (iii) Average Fair Value as of Vesting Date of Equity Awards Granted and Vested in the Year |  |  | (iv) Average Change in Fair Value from End of the Prior Year to Vesting Date of Equity Awards Granted in Prior Years that Vested in the Year |  |  | (v) Average Fair Value at the End of the Prior Year of Equity Awards that Failed to Meet Vesting Conditions in the Year |  |  | (vi) Average Value of Dividends or other Earnings Paid on Stock or Option Awards not Otherwise Reflected in Fair Value or Total Compensation |  |  | Total Average Equity Award Adjustments |
2022 |  | $ | 1,624,438 |  |  |  | ($347,643 | ) |  | $ | — |  |  |  | ($54,695 | ) |  | $ | — |  |  | $ | — |  |  | $ | 1,222,100 |
2021 |  | $ | 717,568 |  |  |  | $237,467 |  |  | $ | — |  |  |  | $1,738 |  |  | $ | — |  |  | $ | — |  |  | $ | 956,773 |
2020 |  | $ | 216,912 |  |  |  | ($26 | ) |  | $ | — |  |  |  | ($1,675 | ) |  | $ | — |  |  | $ | — |  |  | $ | 215,211 |
(5) | Cumulative TSR for an initial investment of $100 on December 31, 2019, through and including the end of the fiscal year for each row in the table. Cumulative TSR is calculated by dividing the sum of the cumulative amount of dividends for the measurement period, assuming dividend reinvestment, and the difference between the Company’s share price at the end and the beginning of the measurement period by the Company’s share price at the beginning of the measurement period.
(6) | Represents the cumulative TSR for an initial investment of $100 on December 31, 2019, through and including the end of the fiscal year for each row in the table, of the Company’s industry peer group (“Peer Group Index”), which appears in the Stock Performance Graph in Item 5 of the Company’s Annual Report on Form 10-K for 2022, and is comprised of the following publicly-traded real estate services companies: CBRE Group, Inc., Colliers International Group, Inc., Cushman & Wakefield plc, Jones Lang LaSalle Incorporated, and Newmark Group Inc. The Peer Group Index is weighted by each company’s stock market capitalization at the beginning of each fiscal year.
(7) | The dollar amounts reported represent the amount of net income reflected in the Company’s audited financial statements for the applicable year.
(8) | The Company has determined that pre-tax net income is the financial performance measure that, in the Company’s assessment, represents the most important performance measure used by the Company to link compensation actually paid to the Company’s NEOs, for the most recently completed fiscal year, to company performance.
Company Selected Measure Name | pre-tax net income |  |
Named Executive Officers, Footnote [Text Block] | The names of each of the NEOs (excluding Mr. Nadji) included for purposes of calculating the average amounts in each applicable year are as follows: (i) for 2022, Steven F. DeGennaro, Richard Matricaria, John David Parker, and Gregory A. LaBerge; (ii) for 2021, Steven F. DeGennaro, Richard Matricaria, John David Parker, and Gregory A. LaBerge; and (iii) for 2020, Steven F. DeGennaro, Martin E. Louie, and Gregory A. LaBerge. |  |
Peer Group Issuers, Footnote [Text Block] | Represents the cumulative TSR for an initial investment of $100 on December 31, 2019, through and including the end of the fiscal year for each row in the table, of the Company’s industry peer group (“Peer Group Index”), which appears in the Stock Performance Graph in Item 5 of the Company’s Annual Report on Form 10-K for 2022, and is comprised of the following publicly-traded real estate services companies: CBRE Group, Inc., Colliers International Group, Inc., Cushman & Wakefield plc, Jones Lang LaSalle Incorporated, and Newmark Group Inc. The Peer Group Index is weighted by each company’s stock market capitalization at the beginning of each fiscal year. |  |
PEO Total Compensation Amount | $ 7,532,900 | $ 8,224,777 | $ 5,257,504
PEO Actually Paid Compensation Amount | $ 3,519,692 | 10,965,723 | 5,059,672
Adjustment To PEO Compensation, Footnote [Text Block] | The dollar amounts reported in column (c) represent the amount of “compensation actually paid” to Mr. Nadji, as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual amount of compensation earned by or paid to Mr. Nadji during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to Mr. Nadji’s total compensation for each year to determine the compensation actually paid:
Year |  | Reported Summary Compensation Table Total for PEO |  |  | Reported Value of Equity Awards (a) |  |  | Equity Award Adjustments (b) |  |  | Compensation Actually Paid to PEO |
2022 |  | $ | 7,532,900 |  |  | $ | 4,350,680 |  |  | $ | 337,472 |  |  | $ | 3,519,692 |
2021 |  | $ | 8,224,777 |  |  | $ | 3,597,200 |  |  | $ | 6,338,146 |  |  | $ | 10,965,723 |
2020 |  | $ | 5,257,504 |  |  | $ | 3,376,400 |  |  | $ | 3,178,568 |  |  | $ | 5,059,672 |
Non-PEO NEO Average Total Compensation Amount | $ 3,698,899 | 2,572,998 | 714,373
Non-PEO NEO Average Compensation Actually Paid Amount | $ 2,691,110 | 2,981,491 | 749,696
Adjustment to Non-PEO NEO Compensation Footnote [Text Block] | The dollar amounts reported in column (e) represent the average amount of “compensation actually paid” to the NEOs as a group (excluding Mr. Nadji), as computed in accordance with Item 402(v) of Regulation S-K. The dollar amounts do not reflect the actual average amount of compensation earned by or paid to the NEOs as a group (excluding Mr. Nadji) during the applicable year. In accordance with the requirements of Item 402(v) of Regulation S-K, the following adjustments were made to average total compensation for the NEOs as a group (excluding Mr. Nadji) for each year to determine the compensation actually paid, using the same methodology described above in Note 2:
Year |  | Average Reported Summary Compensation Table Total for Non-PEO NEOs |  |  | Average Reported Value of Equity Awards |  |  | Average Equity Award Adjustments (a) |  |  | Average Compensation Actually Paid to Non-PEO NEOs |
2022 |  | $ | 3,698,899 |  |  | $ | 2,229,889 |  |  | $ | 1,222,100 |  |  | $ | 2,691,110 |
2021 |  | $ | 2,572,998 |  |  | $ | 548,280 |  |  | $ | 956,773 |  |  | $ | 2,981,491 |
2020 |  | $ | 714,373 |  |  | $ | 179,888 |  |  | $ | 215,211 |  |  | $ | 749,696 |
Compensation Actually Paid vs. Total Shareholder Return [Text Block] | Compensation Actually Paid and Cumulative TSR As demonstrated by the following graph, CAP for Mr. Nadji and the average CAP for the Company’s other NEOs is aligned with the Company’s cumulative TSR over the three years presented in the table. The alignment of CAP with the Company’s cumulative TSR over the period presented is because a significant portion of the compensation actually paid to our NEOs, particularly Mr. Nadji, is comprised of equity awards. As described in more detail in the section “Compensation Discussion and Analysis,” approximately 56% to 59% of the value of target total direct compensation awarded to the NEOs in 2022 was comprised of restricted stock units.
* | Assumes $100 invested on 12/31/2019
Compensation Actually Paid vs. Net Income [Text Block] | Compensation Actually Paid, Net Income and Pre-Tax Net Income As demonstrated by the following graph, CAP for Mr. Nadji and the average CAP for the Company’s other NEOs is generally aligned with the Company’s net income trend over the three years presented in the table. While the Company does not use net income as a performance measure in its executive compensation program, net income is correlated with the pre-tax net income, which the Company does use when setting goals in the Company’s short-term cash incentive compensation program. As described in more detail in the section “Compensation Discussion and Analysis,” approximately 31% to 35% of the value of target total direct compensation awarded to the NEOs in 2022 was comprised of amounts determined under the short-term cash incentive compensation program. In addition, as demonstrated by the following graph, CAP for Mr. Nadji and the average CAP for the Company’s other NEOs is generally aligned with the Company’s pre-tax net income trend over the three years presented in the table. Given the importance of pre-tax net income to our executive compensation program, as discussed below, the Company has determined that pre-tax net income is the financial performance measure that, in the Company’s assessment, represents the most important performance measure used by the Company to link compensation actually paid to the NEOs, for the most recently completed fiscal year, to Company performance. The Company utilizes pre-tax net income as the financial goal for the Company’s short-term incentive compensation program. Pre-tax net income was chosen as the financial goal for the Company’s annual incentive plan because it provides a consistent and firm measure of the Company’s overall financial performance and profitability. As described in more detail in the section “Compensation Discussion and Analysis,” approximately 31% to 35 % of the value of target total direct compensation awarded to the NEOs in 2022 was comprised of amounts determined under the short-term cash incentive compensation program. |  |
Compensation Actually Paid vs. Company Selected Measure [Text Block] | Compensation Actually Paid, Net Income and Pre-Tax Net Income As demonstrated by the following graph, CAP for Mr. Nadji and the average CAP for the Company’s other NEOs is generally aligned with the Company’s net income trend over the three years presented in the table. While the Company does not use net income as a performance measure in its executive compensation program, net income is correlated with the pre-tax net income, which the Company does use when setting goals in the Company’s short-term cash incentive compensation program. As described in more detail in the section “Compensation Discussion and Analysis,” approximately 31% to 35% of the value of target total direct compensation awarded to the NEOs in 2022 was comprised of amounts determined under the short-term cash incentive compensation program. In addition, as demonstrated by the following graph, CAP for Mr. Nadji and the average CAP for the Company’s other NEOs is generally aligned with the Company’s pre-tax net income trend over the three years presented in the table. Given the importance of pre-tax net income to our executive compensation program, as discussed below, the Company has determined that pre-tax net income is the financial performance measure that, in the Company’s assessment, represents the most important performance measure used by the Company to link compensation actually paid to the NEOs, for the most recently completed fiscal year, to Company performance. The Company utilizes pre-tax net income as the financial goal for the Company’s short-term incentive compensation program. Pre-tax net income was chosen as the financial goal for the Company’s annual incentive plan because it provides a consistent and firm measure of the Company’s overall financial performance and profitability. As described in more detail in the section “Compensation Discussion and Analysis,” approximately 31% to 35 % of the value of target total direct compensation awarded to the NEOs in 2022 was comprised of amounts determined under the short-term cash incentive compensation program. |  |
Total Shareholder Return Vs Peer Group [Text Block] | Cumulative TSR of the Company and Cumulative TSR of the Peer Group As demonstrated by the following graph, the Company’s cumulative TSR over the three-year period presented in the table was -5%, while the cumulative TSR of the Peer Group Index was 6% over the three years presented in the table. In light of the market disruptions during 2021 and 2022, the Company’s cumulative TSR was generally consistent with the Peer Group Index during the three years presented in the table. The Company remains committed to improving financial performance as compared to the companies comprising the Peer Group Index.
* | Assumes $100 invested on 12/31/2019
Tabular List [Table Text Block] | Tabular list of Financial Performance Measures As described in greater detail in “Compensation Discussion and Analysis,” the Company’s executive compensation program reflects a variable pay-for-performance philosophy. The most important financial performance measure used by the Company to link executive compensation actually paid to the Company’s NEOs, for the most recently completed fiscal year, to the Company’s performance is Pre-Tax Net Income. |  |
Total Shareholder Return Amount | $ 95.24 | 138.15 | 99.95
Peer Group Total Shareholder Return Amount | 106.44 | 163.37 | 93.48
Net Income (Loss) | $ 104,200,000 | $ 142,500,000 | $ 42,800,000
Company Selected Measure Amount | 142.0 | 193.3 | 59.4
PEO Name | Mr. Nadji |  |
Measure [Axis]: 1 |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Measure Name | Pre-Tax Net Income |  |
Non-GAAP Measure Description [Text Block] | The Company has determined that pre-tax net income is the financial performance measure that, in the Company’s assessment, represents the most important performance measure used by the Company to link compensation actually paid to the Company’s NEOs, for the most recently completed fiscal year, to company performance. |  |
PEO [Member] | Reported Value of Equity Awards [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ 4,350,680 | $ 3,597,200 | $ 3,376,400
PEO [Member] | Equity Award Adjustments( [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 337,472 | 6,338,146 | 3,178,568
PEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (2,588,010) | 1,856,196 | (826)
PEO [Member] | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 3,169,400 | 4,581,600 | 3,314,760
PEO [Member] | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (243,918) | (99,650) | (135,366)
Non-PEO NEO [Member] | Reported Value of Equity Awards [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 2,229,889 | 548,280 | 179,888
Non-PEO NEO [Member] | Equity Award Adjustments( [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 1,222,100 | 956,773 | 215,211
Non-PEO NEO [Member] | Change In Fair Value Of Outstanding And Unvested Awards Granted In Prior Fiscal Years [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | (347,643) | 237,467 | (26)
Non-PEO NEO [Member] | Year-end Fair Value Of Awards Granted In The Current Fiscal Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | 1,624,438 | 717,568 | 216,912
Non-PEO NEO [Member] | Change In Fair Value As Of Vesting Date Of Prior Year Awards Vested During Current Year [Member] |  |  |
Pay vs Performance Disclosure [Table] |  |  |
Adjustment to Compensation Amount | $ (54,695) | $ 1,738 | $ (1,675)

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