SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES	9 Months Ended
Sep. 30, 2018
Accounting Policies [Abstract]
Significant Accounting Policies [Text Block]	SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Basis of Presentation The accompanying Condensed Consolidated Financial Statements are unaudited and are presented in accordance with the requirements for quarterly reports on Form 10-Q and consequently do not include all of the information and footnote disclosures required by accounting principles generally accepted in the United States of America (“GAAP”). The Company’s Condensed Consolidated Financial Statements reflect all adjustments (consisting only of normal recurring adjustments) necessary in the opinion of management to present fairly our interim financial position and results of operations and cash flows for the periods presented. The accompanying Condensed Consolidated Financial Statements are presented in accordance with GAAP and the rules and regulations of the Securities and Exchange Commission (“SEC”). The accompanying unaudited Condensed Consolidated Financial Statements should be read in conjunction with our Consolidated Financial Statements, and notes thereto, included in our Annual Report on Form 10-K for the year ended December 31, 2017, filed with the SEC. Operating results for the periods in these Condensed Consolidated Financial Statements are not necessarily indicative of results for any future period. The accompanying Condensed Consolidated Financial Statements include the accounts of Westwood and its subsidiaries. All intercompany accounts and transactions have been eliminated upon consolidation. Recent Accounting Pronouncements Recently Adopted In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606), which resulted from a joint project by the FASB and the International Accounting Standards Board to clarify the principles for recognizing revenue and to develop a common revenue standard for GAAP and International Financial Reporting Standards (“IFRS”). The ASU is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Retrospective application is required, with the entity either applying the change to each prior reporting period presented or applying the cumulative effect of each prior reporting period presented at the date of initial application. We adopted ASU 2014-09 effective January 1, 2018. See further discussion in Note 9 “Revenue.” In March 2018, the FASB issued ASU 2018-05, Income Taxes: Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118, to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Cuts and Jobs Act (“Tax Reform Act”). See further discussion in Note 11 “Income Taxes.” Not Yet Adopted In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 requires lessees to recognize a lease liability and a right-of-use asset for all leases at the commencement date, excluding short-term leases. Leases will be classified as either financing or operating, with classification impacting the pattern of expense recognition in the income statement. The amendment is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We will adopt the standard as of January 1, 2019 under the modified retrospective approach, which allows for recording the cumulative effect of the adoption of the standard as an adjustment to beginning retained earnings. We will elect the package of practical expedients permitted under the transition guidance, which among other things, allows us to carry forward the historical lease classification and elect hindsight to determine certain lease terms for existing leases. We have evaluated our population of contracts subject to balance sheet recognition and estimate adoption will result in recognition of additional lease assets and net lease liabilities of approximately $8 million as of January 1, 2019 primarily related to the future minimum payments required under operating leases as disclosed in Note 13 “Commitments and Contingencies” to our Consolidated Financial Statements included in our Annual Report Form 10-K for the fiscal year ended December 31, 2017. The insignificant difference in the additional lease assets and net lease liabilities will be recorded as an adjustment to beginning retained earnings. We do not believe the standard will materially impact our Consolidated Statements of Comprehensive Income or Consolidated Statements of Cash Flows. Beginning with our Quarterly Report on Form 10-Q for the quarter ended March 31, 2019, we will add disclosures surrounding our leases, including lease cost disaggregation, weighted average remaining lease terms and weighted average discount rate used to determine our lease assets and liabilities. We have also analyzed our current business process and internal controls and anticipate implementing new procedures to successfully adopt the standard, particularly for identification of leases and evaluation of the discount rate. In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. The purpose of this amendment is to simplify the accounting for share-based payments granted to nonemployees for goods and services by aligning it with the accounting used for arrangements with employees. The amendments in this update are effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. We do not expect the amendment to have a material impact on our Consolidated Financial Statements, and we plan to adopt the standard within the required time frame. In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework- Changes to the Disclosure Requirements for Fair Value Measurement. The purpose of this amendment is to modify, remove and add certain disclosure requirements for fair value measurements. Under ASU 2018-13, entities are required to disclose the amount of total gains or losses recognized in other comprehensive income attributable to assets and liabilities categorized within Level 3 of the fair value hierarchy. The ASU also adds an incremental requirement about significant unobservable inputs for Level 3 fair value measurements. The requirement to disclose reasons for transfers between Level 1 and Level 2 was removed. Various requirements for Level 3 disclosure were also modified. The amendments in this ASU are effective for all entities for fiscal years and interim periods beginning after December 15, 2019. We do not expect the amendment to have a material impact on our Consolidated Financial Statements, and we plan to adopt this amendment within the required time frame. In August 2018, the FASB issued ASU 2018-15, Intangibles- Goodwill and Other - Internal-Use Software (Topic 350): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The purpose of this amendment is to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The amendments in this update are effective for public companies for fiscal years beginning after December 15, 2019, including interim periods within that fiscal year. We do not expect the amendment to have a material impact on our Consolidated Financial Statements, and we plan to adopt the standard within the required time frame.

SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES

Basis of Presentation

The accompanying Condensed Consolidated Financial Statements are unaudited and are presented in accordance with the requirements for quarterly reports on Form 10-Q and consequently do not include all of the information and footnote disclosures required by accounting principles generally accepted in the United States of America (“GAAP”). The Company’s Condensed Consolidated Financial Statements reflect all adjustments (consisting only of normal recurring adjustments) necessary in the opinion of management to present fairly our interim financial position and results of operations and cash flows for the periods presented. The accompanying Condensed Consolidated Financial Statements are presented in accordance with GAAP and the rules and regulations of the Securities and Exchange Commission (“SEC”).

The accompanying unaudited Condensed Consolidated Financial Statements should be read in conjunction with our Consolidated Financial Statements, and notes thereto, included in our Annual Report on Form 10-K for the year ended December 31, 2017, filed with the SEC. Operating results for the periods in these Condensed Consolidated Financial Statements are not necessarily indicative of results for any future period. The accompanying Condensed Consolidated Financial Statements include the accounts of Westwood and its subsidiaries. All intercompany accounts and transactions have been eliminated upon consolidation.

Recent Accounting Pronouncements

Recently Adopted

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, Revenue from Contracts with Customers (Topic 606), which resulted from a joint project by the FASB and the International Accounting Standards Board to clarify the principles for recognizing revenue and to develop a common revenue standard for GAAP and International Financial Reporting Standards (“IFRS”). The ASU is effective for annual reporting periods beginning after December 15, 2017, including interim reporting periods within that reporting period. Retrospective application is required, with the entity either applying the change to each prior reporting period presented or applying the cumulative effect of each prior reporting period presented at the date of initial application. We adopted ASU 2014-09 effective January 1, 2018. See further discussion in Note 9 “Revenue.”

In March 2018, the FASB issued ASU 2018-05, Income Taxes: Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118, to address the application of U.S. GAAP in situations when a registrant does not have the necessary information available, prepared or analyzed (including computations) in reasonable detail to complete the accounting for certain income tax effects of the Tax Cuts and Jobs Act (“Tax Reform Act”). See further discussion in Note 11 “Income Taxes.”

Not Yet Adopted

In February 2016, the FASB issued ASU 2016-02, Leases. ASU 2016-02 requires lessees to recognize a lease

liability and a right-of-use asset for all leases at the commencement date, excluding short-term leases. Leases will be classified as either financing or operating, with classification impacting the pattern of expense recognition in the income statement. The amendment is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. We will adopt the standard as of January 1, 2019 under the modified retrospective approach, which allows for recording the cumulative effect of the adoption of the standard as an adjustment to beginning retained earnings. We will elect the package of practical expedients permitted under the transition guidance, which among other things, allows us to carry forward the historical lease classification and elect hindsight to determine certain lease terms for existing leases. We have evaluated our population of contracts subject to balance sheet recognition and estimate adoption will result in recognition of additional lease assets and net lease liabilities of approximately $8 million as of January 1, 2019 primarily related to the future minimum payments required under operating leases as disclosed in Note 13 “Commitments and Contingencies” to our Consolidated Financial Statements included in our Annual Report Form 10-K for the fiscal year ended December 31, 2017. The insignificant difference in the additional lease assets and net lease liabilities will be recorded as an adjustment to beginning retained earnings. We do not believe the standard will materially impact our Consolidated Statements of Comprehensive Income or Consolidated Statements of Cash Flows. Beginning with our Quarterly Report on Form 10-Q for the quarter ended March 31, 2019, we will add disclosures surrounding our leases, including lease cost disaggregation, weighted average remaining lease terms and weighted average discount rate used to determine our lease assets and liabilities. We have also analyzed our current business process and internal controls and anticipate implementing new procedures to successfully adopt the standard, particularly for identification of leases and evaluation of the discount rate.

In June 2018, the FASB issued ASU 2018-07, Compensation - Stock Compensation (Topic 718): Improvements to Nonemployee Share-Based Payment Accounting. The purpose of this amendment is to simplify the accounting for share-based payments granted to nonemployees for goods and services by aligning it with the accounting used for arrangements with employees. The amendments in this update are effective for public business entities for fiscal years beginning after December 15, 2018, including interim periods within that fiscal year. We do not expect the amendment to have a material impact on our Consolidated Financial Statements, and we plan to adopt the standard within the required time frame.

In August 2018, the FASB issued ASU 2018-13, Fair Value Measurement (Topic 820): Disclosure Framework- Changes to the Disclosure Requirements for Fair Value Measurement. The purpose of this amendment is to modify, remove and add certain disclosure requirements for fair value measurements. Under ASU 2018-13, entities are required to disclose the amount of total gains or losses recognized in other comprehensive income attributable to assets and liabilities categorized within Level 3 of the fair value hierarchy. The ASU also adds an incremental requirement about significant unobservable inputs for Level 3 fair value measurements. The requirement to disclose reasons for transfers between Level 1 and Level 2 was removed. Various requirements for Level 3 disclosure were also modified. The amendments in this ASU are effective for all entities for fiscal years and interim periods beginning after December 15, 2019. We do not expect the amendment to have a material impact on our Consolidated Financial Statements, and we plan to adopt this amendment within the required time frame.

In August 2018, the FASB issued ASU 2018-15, Intangibles- Goodwill and Other - Internal-Use Software (Topic 350): Customer's Accounting for Implementation Costs Incurred in a Cloud Computing Arrangement That Is a Service Contract. The purpose of this amendment is to align the requirements for capitalizing implementation costs incurred in a hosting arrangement that is a service contract with the requirements for capitalizing implementation costs incurred to develop or obtain internal-use software (and hosting arrangements that include an internal-use software license). The amendments in this update are effective for public companies for fiscal years beginning after December 15, 2019, including interim periods within that fiscal year. We do not expect the amendment to have a material impact on our Consolidated Financial Statements, and we plan to adopt the standard within the required time frame.