v3.26.1
Segment Information (Details 1)
$ in Thousands
 3 Months Ended 6 Months Ended
Jun. 30, 2026
USD ($)
Jun. 30, 2025
USD ($)
Jun. 30, 2026
USD ($)
reportable_segment
Jun. 30, 2025
USD ($)
Dec. 31, 2025
USD ($)
Segment Reporting [Line Items]          
Number of reportable segments | reportable_segment     5    
Revenues $ 786,307 $ 706,818 $ 1,490,450 $ 1,358,558  
Adjusted EBITDA (108,687) (94,291) (198,372) (176,584)  
Stock-based compensation (18,567) (19,954) (32,815) (31,497)  
Depreciation and amortization 43,955 41,369 88,286 83,375  
Deferred Acquisition Consideration Expense (Income) (8,837) 3,220 (19,091) (3,437)  
Other items, net 25,782 13,016 36,992 16,818  
Operating income 11,546 23,172 21,188 41,457  
Interest and Debt Expense (22,328) (23,455) (45,594) (46,811)  
Foreign exchange, net 605 (1,338) (2,416) (118)  
Other, net 937 (360) 868 (111)  
Nonoperating Income (Expense) (20,786) (25,153) (47,142) (47,040)  
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest (9,240) (1,981) (25,954) (5,583)  
Income tax (benefit) expense (348) 2,673 (3,236) 4,395  
Income Loss From Continuing Operations Before Equity In Earnings Of Non-consolidated Affiliates (8,892) (4,654) (22,718) (9,978)  
Income (Loss) from Equity Method Investments 191 20 70 19  
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest (8,701) (4,634) (22,648) (9,959)  
Net Income (Loss) Attributable to Noncontrolling Interest 585 (627) 1,559 1,781  
Net Income (Loss) Attributable to Parent (8,116) (5,261) (21,089) (8,178)  
Goodwill 1,594,881   1,594,881   $ 1,595,238
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Long-Lived Asset, Excluding Financial Instrument, Customer Relationship, Mortgage Servicing Right, Deferred Policy Acquisition Cost, and Deferred Tax Asset, Amount 264,400   264,400   286,600
Non-US          
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Long-Lived Asset, Excluding Financial Instrument, Customer Relationship, Mortgage Servicing Right, Deferred Policy Acquisition Cost, and Deferred Tax Asset, Amount 67,100   67,100   75,000
UNITED STATES          
Segment Reporting [Line Items]          
Revenues 623,876 557,395 1,168,423 1,070,013  
Segment Reporting, Entity-Wide Information Not Provided as Part of Reportable Segment, Geographical Area, Revenue and Long-Lived Asset [Line Items]          
Long-Lived Asset, Excluding Financial Instrument, Customer Relationship, Mortgage Servicing Right, Deferred Policy Acquisition Cost, and Deferred Tax Asset, Amount 197,400   197,400   $ 211,600
Operating Segments          
Segment Reporting [Line Items]          
Revenues 790,677 708,961 1,497,049 1,362,516  
Billable costs 154,874 108,689 274,393 196,242  
Staff related costs 376,662 370,419 744,396 728,132  
General and Administrative Expense 79,837 75,737 150,067 148,898  
Unbillable and other costs 56,161 48,130 96,552 88,364  
Adjusted EBITDA (123,143) (105,986) (231,641) (200,880)  
Operating Segments | Marketing Services          
Segment Reporting [Line Items]          
Revenues 277,256 275,888 528,034 524,940  
Billable costs 43,014 40,584 76,216 73,406  
Staff related costs 131,354 134,397 263,543 262,726  
General and Administrative Expense 25,999 29,393 48,731 56,503  
Unbillable and other costs 31,673 26,745 49,353 43,571  
Adjusted EBITDA (45,216) (44,769) (90,191) (88,734)  
Operating Segments | Digital Transformation [Member]          
Segment Reporting [Line Items]          
Revenues 117,672 97,592 219,138 188,479  
Billable costs 10,248 6,492 15,205 8,875  
Staff related costs 67,316 63,537 131,883 122,764  
General and Administrative Expense 7,720 7,176 14,108 12,617  
Unbillable and other costs 169 3 292 765  
Adjusted EBITDA (32,219) (20,384) (57,650) (43,458)  
Operating Segments | Media & Commerce          
Segment Reporting [Line Items]          
Revenues 179,943 164,025 354,454 324,447  
Billable costs 25,273 13,061 50,289 27,295  
Staff related costs 98,710 98,038 195,935 192,986  
General and Administrative Expense 24,738 24,325 47,911 46,738  
Unbillable and other costs 15,130 13,395 28,812 28,890  
Adjusted EBITDA (16,092) (15,206) (31,507) (28,538)  
Operating Segments | Communications          
Segment Reporting [Line Items]          
Revenues 188,426 146,180 341,528 275,268  
Billable costs 76,337 48,548 132,665 86,655  
Staff related costs 61,197 57,311 118,147 115,623  
General and Administrative Expense 14,179 11,530 26,926 24,526  
Unbillable and other costs 1,819 2,584 3,843 4,665  
Adjusted EBITDA (34,894) (26,207) (59,947) (43,799)  
Operating Segments | The Marketing Cloud          
Segment Reporting [Line Items]          
Revenues 27,380 25,276 53,895 49,382  
Billable costs 2 4 18 11  
Staff related costs 18,085 17,136 34,888 34,033  
General and Administrative Expense 7,201 3,313 12,391 8,514  
Unbillable and other costs 7,370 5,403 14,252 10,473  
Adjusted EBITDA 5,278 580 7,654 3,649  
Segment Reporting, Reconciling Item, Excluding Corporate Nonsegment          
Segment Reporting [Line Items]          
Revenues (4,400) (2,100) 6,600 4,000  
Corporate Segment and Other Operating Segment          
Segment Reporting [Line Items]          
Adjusted EBITDA $ (14,456) $ 11,695 $ (33,269) $ (24,296)