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Revenues by Product (Tables)
 6 Months Ended
Jul. 31, 2022
Revenue from Contract with Customer [Abstract]  
Summary of Total Revenues
Total revenues consist of the following (in thousands):
Three months ended July 31,Six months ended July 31,
2022202120222021
Subscription services
Commercial Solutions(1)
$236,356 $218,128 $464,080 $425,973 
R&D Solutions(1)
192,293 148,308 367,201 281,582 
Total subscription services$428,649 $366,436 $831,281 $707,555 
Professional services
Commercial Solutions(1)
$44,424 $38,968 $87,745 $82,567 
R&D Solutions(1)
61,145 50,190 120,294 99,045 
Total professional services$105,569 $89,158 $208,039 $181,612 
Total revenues$534,218 $455,594 $1,039,320 $889,167 
(1) Certain prior period revenues have been adjusted to match current period presentation.