STOCK-BASED COMPENSATION: - Future expense, by award type (Details) $ in Thousands	Dec. 31, 2021 USD ($)
Share-based compensation
Total	$ 213,838
2022
Share-based compensation
Total	26,689
2023
Share-based compensation
Total	81,428
2024
Share-based compensation
Total	60,454
2025
Share-based compensation
Total	36,093
2026
Share-based compensation
Total	9,174
Stock options
Share-based compensation
Share-based compensation not yet recognized	2,461
Stock options | 2022
Share-based compensation
Share-based compensation not yet recognized	396
Stock options | 2023
Share-based compensation
Share-based compensation not yet recognized	1,187
Stock options | 2024
Share-based compensation
Share-based compensation not yet recognized	720
Stock options | 2025
Share-based compensation
Share-based compensation not yet recognized	158
Stock options | 2026
Share-based compensation
Share-based compensation not yet recognized	0
Restricted stock units
Share-based compensation
Future share-based compensation expense expected	188,708
Restricted stock units | 2022
Share-based compensation
Future share-based compensation expense expected	19,445
Restricted stock units | 2023
Share-based compensation
Future share-based compensation expense expected	70,477
Restricted stock units | 2024
Share-based compensation
Future share-based compensation expense expected	53,766
Restricted stock units | 2025
Share-based compensation
Future share-based compensation expense expected	35,846
Restricted stock units | 2026
Share-based compensation
Future share-based compensation expense expected	9,174
Restricted stock units | Diablo.AI, Inc.
Share-based compensation
Future share-based compensation expense expected	1,259
Restricted stock units | Diablo.AI, Inc. | 2022
Share-based compensation
Future share-based compensation expense expected	133
Restricted stock units | Diablo.AI, Inc. | 2023
Share-based compensation
Future share-based compensation expense expected	518
Restricted stock units | Diablo.AI, Inc. | 2024
Share-based compensation
Future share-based compensation expense expected	519
Restricted stock units | Diablo.AI, Inc. | 2025
Share-based compensation
Future share-based compensation expense expected	89
Restricted stock units | Diablo.AI, Inc. | 2026
Share-based compensation
Future share-based compensation expense expected	0
Consideration Holdback | Data Plus Math Corporation
Share-based compensation
Future share-based compensation expense expected	4,062
Consideration Holdback | Data Plus Math Corporation | 2022
Share-based compensation
Future share-based compensation expense expected	2,032
Consideration Holdback | Data Plus Math Corporation | 2023
Share-based compensation
Future share-based compensation expense expected	2,030
Consideration Holdback | Data Plus Math Corporation | 2024
Share-based compensation
Future share-based compensation expense expected	0
Consideration Holdback | Data Plus Math Corporation | 2025
Share-based compensation
Future share-based compensation expense expected	0
Consideration Holdback | Data Plus Math Corporation | 2026
Share-based compensation
Future share-based compensation expense expected	0
Consideration Holdback | DataFleets, Ltd
Share-based compensation
Future share-based compensation expense expected	12,833
Consideration Holdback | DataFleets, Ltd | 2022
Share-based compensation
Future share-based compensation expense expected	1,510
Consideration Holdback | DataFleets, Ltd | 2023
Share-based compensation
Future share-based compensation expense expected	6,039
Consideration Holdback | DataFleets, Ltd | 2024
Share-based compensation
Future share-based compensation expense expected	5,284
Consideration Holdback | DataFleets, Ltd | 2025
Share-based compensation
Future share-based compensation expense expected	0
Consideration Holdback | DataFleets, Ltd | 2026
Share-based compensation
Future share-based compensation expense expected
Pacific Data Partners, LLC Agreement Plan | Pacific Data Partners LLC
Share-based compensation
Future share-based compensation expense expected	2,275
Pacific Data Partners, LLC Agreement Plan | Pacific Data Partners LLC | 2022
Share-based compensation
Future share-based compensation expense expected	2,275
Pacific Data Partners, LLC Agreement Plan | Pacific Data Partners LLC | 2023
Share-based compensation
Future share-based compensation expense expected	0
Pacific Data Partners, LLC Agreement Plan | Pacific Data Partners LLC | 2024
Share-based compensation
Future share-based compensation expense expected	0
Pacific Data Partners, LLC Agreement Plan | Pacific Data Partners LLC | 2025
Share-based compensation
Future share-based compensation expense expected	0
Pacific Data Partners, LLC Agreement Plan | Pacific Data Partners LLC | 2026
Share-based compensation
Future share-based compensation expense expected	0
Acuity Performance Earnout | Acuity Data
Share-based compensation
Future share-based compensation expense expected	1,334
Acuity Performance Earnout | Acuity Data | 2022
Share-based compensation
Future share-based compensation expense expected	354
Acuity Performance Earnout | Acuity Data | 2023
Share-based compensation
Future share-based compensation expense expected	815
Acuity Performance Earnout | Acuity Data | 2024
Share-based compensation
Future share-based compensation expense expected	165
Acuity Performance Earnout | Acuity Data | 2025
Share-based compensation
Future share-based compensation expense expected	0
Acuity Performance Earnout | Acuity Data | 2026
Share-based compensation
Future share-based compensation expense expected	0
Other stock-based compensation
Share-based compensation
Future share-based compensation expense expected	906
Other stock-based compensation | 2022
Share-based compensation
Future share-based compensation expense expected	544
Other stock-based compensation | 2023
Share-based compensation
Future share-based compensation expense expected	362
Other stock-based compensation | 2024
Share-based compensation
Future share-based compensation expense expected	0
Other stock-based compensation | 2025
Share-based compensation
Future share-based compensation expense expected	0
Other stock-based compensation | 2026
Share-based compensation
Future share-based compensation expense expected	$ 0