Related Party Transactions	6 Months Ended
Related Party Transactions	Jun. 30, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In the ordinary course of business, the Company enters into transactions with related parties, including Stagwell and its affiliates. The transactions may range in the nature and value of services underlying the arrangements. Below are the related party transactions that are significant in nature: In October 2019, a Partner Firm of the Company entered into an arrangement with a Stagwell affiliate, in which the Stagwell affiliate and the Partner Firm collaborated to provide various services to a client of the Partner Firm. The Partner Firm and the Stagwell affiliate pitched and won this business together, with the client ultimately determining the general scope of work for each agency. Under the arrangement, which was structured as a sub-contract due to client preference, the Partner Firm is expected to pay the Stagwell affiliate, for services provided by the Stagwell affiliate in connection with serving the client, approximately $2,000 which has been fully recognized in March 2021. As of June 30, 2021, $22 was owed to the affiliate. In May 2020, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform programmatic media planning, buying and reporting services. Under the arrangement, the Partner Firm is expected to receive from the Stagwell affiliate approximately $2,397, which has been fully recognized in May 2021. As of June 30, 2021, $582 was due from the affiliate. In November 2020, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform Event Management Services. Under the arrangement, the Partner Firm expected to receive from the Stagwell affiliate approximately $456, which was fully recognized in March of 2021. As of June 30, 2021, $0 was due from the affiliate. In 2021, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform media buying services. Under the arrangement, the Partner Firm is expected to receive from the Stagwell affiliate approximately $1,060 which is expected to be fully recognized as of December 2021. As of June 30, 2021, $0 was due from the affiliate. In January 2021, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform media planning, buying and reporting services. Under the arrangement, the Partner Firm expected to receive from the Stagwell affiliate approximately $6,429, which was fully recognized in June 2021. As of June 30, 2021, $0 was due from the affiliate. In February 2021, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform requirements gathering and concept features for a future-leaning ad platform for the augmented reality space. Under the arrangement, the Stagwell affiliate is expected to receive from the Partner Firm approximately $140, which has been fully recognized in April 2021. As of June 30, 2021, $140 was due to the affiliate. In March 2021, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform media relations support and outreach services. Under the arrangement, the Partner Firm is expected to receive from the Stagwell affiliate approximately $190, which is expected to be fully recognized as of September 2022. As of June 30, 2021, $180 was due from the affiliate. In April 2021, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform media planning, buying and reporting services. Under the arrangement, the Partner Firm is expected to receive from the Stagwell affiliate approximately $3,291, which is expected to be fully recognized as of March 2023. As of June 30, 2021, $434 was due from the affiliate. In April 2021, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform specialized digital strategy, user experience design, analytics and reporting. Under the arrangement, the Partner Firm is expected to pay the Stagwell affiliate approximately $1,123, which is expected to be fully recognized as of the first quarter of 2022. As of June 30, 2021, $659 was due to the affiliate. In May 2021, a Partner Firm of the Company entered into an arrangement with a certain Stagwell affiliate to perform website design and development services. Under the arrangement, the Partner Firm is expected to pay the Stagwell affiliate approximately $708, which is expected to be fully recognized as of December 2021. As of June 30, 2021, $0 was due to the affiliate. The Company entered into an agreement commencing on January 1, 2020 to sublease office space through July 2021 to a company whose chairman is a member of the Company’s Board of Directors. As of June 30, 2021, the total future rental income related to the sublease is approximately $8. In June 2021, a Partner Firm of the Company entered into an arrangement to perform media planning, buying and reporting services to an organization whose Chief Executive Officer is the wife of the Chief Executive Officer and Chairman of the Company. Under the arrangement, the Partner Firm is expected to receive from the organization approximately $884, which is expected to be fully recognized as of July 2021. As of June 30, 2021, $0 was due from the affiliate.