v3.25.2
Segment Information - Summary of Significant Segment Expenses and Other Segment Items (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment Reporting Information [Line Items]        
Net sales $ 218.1 $ 242.7 $ 419.2 $ 446.1
Restructuring, impairment and other charges, net (1.0) (1.3) (3.9) (3.1)
Share-based compensation expense (7.5) (7.4) (13.5) (12.5)
Gain on sale of long-lived assets     0.5 9.8
Non-income tax, net 0.1 0.3 0.2 0.7
Gain on investments in equity securities 0.1 0.3 0.1 0.4
Depreciation and amortization (15.1) (14.3) (29.2) (28.2)
Interest expense, net (3.8) (3.7) (6.9) (7.3)
Investment and other income (loss), net (0.4) 0.1 (0.9) 0.4
Earnings before income taxes 48.7 61.2 90.9 102.6
Capital Markets - Software Solutions        
Segment Reporting Information [Line Items]        
Net sales 59.1 57.3 111.0 110.3
Capital Markets - Compliance and Communications Management        
Segment Reporting Information [Line Items]        
Net sales 93.5 113.8 177.4 204.9
Investment Companies - Software Solutions        
Segment Reporting Information [Line Items]        
Net sales 33.1 28.3 65.8 55.6
Investment Companies - Compliance and Communications Management        
Segment Reporting Information [Line Items]        
Net sales 32.4 43.3 65.0 75.3
Operating Segments        
Segment Reporting Information [Line Items]        
Net sales 218.1 242.7 419.2 446.1
Depreciation and amortization (15.1) (14.3) (29.2) (28.2)
Operating Segments | Capital Markets - Software Solutions        
Segment Reporting Information [Line Items]        
Net sales 59.1 57.3 111.0 110.3
Cost of sales 13.6 [1] 13.7 [1] 27.9 [2] 28.5 [2]
SG&A expenses 23.2 [1] 22.4 [1] 46.8 [2] 44.8 [2]
Other segment items [1] (0.1) 0.0    
Segment Adjusted EBITDA, Total 22.4 21.2 36.3 37.0
Restructuring, impairment and other charges, net   (0.3) (0.6) (0.3)
Depreciation and amortization (7.7) (6.7) (14.7) (13.2)
Operating Segments | Capital Markets - Compliance and Communications Management        
Segment Reporting Information [Line Items]        
Net sales 93.5 113.8 177.4 204.9
Cost of sales 37.0 [1] 41.1 [1] 67.4 [2] 75.5 [2]
SG&A expenses 19.6 [1] 26.9 [1] 36.5 [2] 52.2 [2]
Other segment items [1] 0.1 0.0    
Segment Adjusted EBITDA, Total 36.8 45.8 73.5 77.2
Restructuring, impairment and other charges, net (0.3) (0.8) (1.8) (1.4)
Depreciation and amortization (1.7) (2.0) (3.1) (4.1)
Operating Segments | Investment Companies - Software Solutions        
Segment Reporting Information [Line Items]        
Net sales 33.1 28.3 65.8 55.6
Cost of sales 12.8 [1] 11.6 [1] 26.1 [2] 24.1 [2]
SG&A expenses 6.0 [1] 5.7 [1] 12.7 [2] 12.4 [2]
Other segment items [1] 0.1 (0.1)    
Segment Adjusted EBITDA, Total 14.2 11.1 27.0 19.1
Restructuring, impairment and other charges, net (0.2)   (0.6) (0.1)
Depreciation and amortization (4.7) (4.4) (9.5) (8.6)
Operating Segments | Investment Companies - Compliance and Communications Management        
Segment Reporting Information [Line Items]        
Net sales 32.4 43.3 65.0 75.3
Cost of sales 15.8 [1] 20.4 [1] 32.0 [2] 39.3 [2]
SG&A expenses 4.0 [1] 4.6 [1] 8.2 [2] 9.5 [2]
Other segment items [1] 0.0 0.0    
Segment Adjusted EBITDA, Total 12.6 18.3 24.8 26.5
Restructuring, impairment and other charges, net (0.4) (0.1) (0.5) (0.1)
Depreciation and amortization (1.0) (1.2) (1.9) (2.3)
Operating Segments | Reportable Segment, Aggregation before Other Operating Segment [Member]        
Segment Reporting Information [Line Items]        
Segment Adjusted EBITDA, Total 86.0 96.4 161.6 159.8
Corporate        
Segment Reporting Information [Line Items]        
Corporate (9.7) [3] (9.2) [3] (17.1) [4] (17.4) [4]
Restructuring, impairment and other charges, net (0.1) (0.1) (0.4) (1.2)
Depreciation and amortization $ 0.0 $ 0.0 $ 0.0 $ 0.0
[1] The significant expense categories align with the segment-level information that is regularly provided to the CODM. Segment Cost of sales, segment SG&A expenses and other segment items were adjusted to exclude certain items, as reflected in the Reconciliation of total Segment Adjusted EBITDA sections above, that are not included in the Segment Adjusted EBITDA profitability metric utilized by the CODM.
[2] The significant expense categories align with the segment-level information that is regularly provided to the CODM. Segment Cost of sales and segment SG&A expenses were adjusted to exclude certain items, as reflected in the Reconciliation of total Segment Adjusted EBITDA sections above, that are not included in the Segment Adjusted EBITDA profitability metric utilized by the CODM.
[3] Corporate is not an operating segment and consists primarily of unallocated SG&A expenses.
[4] Corporate is not an operating segment and consists primarily of unallocated SG&A expenses.