| Disaggregation of Operating Revenue |
The tables that follow present the disaggregated operating revenues for the periods indicated: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Three Months Ended June 30, 2023 | | | Segments | | | | (in thousands) | | Index | | Analytics | | ESG and Climate | | All Other - Private Assets | | Total | | Operating Revenue Types | | | | | | | | | | | | Recurring subscriptions | | $ | 200,714 | | | $ | 147,504 | | | $ | 70,047 | | | $ | 37,427 | | | $ | 455,692 | | | Asset-based fees | | 138,162 | | | — | | | — | | | — | | | 138,162 | | | Non-recurring | | 23,440 | | | 2,377 | | | 1,172 | | | 314 | | | 27,303 | | | Total | | $ | 362,316 | | | $ | 149,881 | | | $ | 71,219 | | | $ | 37,741 | | | $ | 621,157 | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Six Months Ended June 30, 2023 | | | Segments | | | | (in thousands) | | Index | | Analytics | | ESG and Climate | | All Other - Private Assets | | Total | | Operating Revenue Types | | | | | | | | | | | | Recurring subscriptions | | $ | 397,392 | | | $ | 292,007 | | | $ | 135,779 | | | $ | 75,761 | | | $ | 900,939 | | | Asset-based fees | | 271,288 | | | — | | | — | | | — | | | 271,288 | | | Non-recurring | | 33,018 | | | 4,944 | | | 2,498 | | | 688 | | | 41,148 | | | Total | | $ | 701,698 | | | $ | 296,951 | | | $ | 138,277 | | | $ | 76,449 | | | $ | 1,213,375 | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Three Months Ended June 30, 2022 | | | Segments | | | | (in thousands) | | Index | | Analytics | | ESG and Climate | | All Other - Private Assets | | Total | | Operating Revenue Types | | | | | | | | | | | | Recurring subscriptions | | $ | 179,711 | | | $ | 139,497 | | | $ | 54,037 | | | $ | 33,804 | | | $ | 407,049 | | | Asset-based fees | | 132,216 | | | — | | | — | | | — | | | 132,216 | | | Non-recurring | | 9,022 | | | 2,187 | | | 1,091 | | | 241 | | | 12,541 | | | Total | | $ | 320,949 | | | $ | 141,684 | | | $ | 55,128 | | | $ | 34,045 | | | $ | 551,806 | | | | | | | | | | | | |
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Six Months Ended June 30, 2022 | | | Segments | | | | (in thousands) | | Index | | Analytics | | ESG and Climate | | All Other - Private Assets | | Total | | Operating Revenue Types | | | | | | | | | | | | Recurring subscriptions | | $ | 354,209 | | | $ | 277,296 | | | $ | 104,609 | | | $ | 70,695 | | | $ | 806,809 | | | Asset-based fees | | 277,269 | | | — | | | — | | | — | | | 277,269 | | | Non-recurring | | 20,230 | | | 4,185 | | | 2,548 | | | 710 | | | 27,673 | | | Total | | $ | 651,708 | | | $ | 281,481 | | | $ | 107,157 | | | $ | 71,405 | | | $ | 1,111,751 | | | | | | | | | | | | |
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| Schedule of Change in Accounts Receivable and Current Deferred Revenue |
The tables that follow present the change in accounts receivable, net of allowances, and current deferred revenue between the dates indicated: | | | | | | | | | | | | | | | | (in thousands) | | Accounts receivable, net of allowances | | Deferred revenue | Opening (December 31, 2022) | | $ | 663,236 | | | $ | 882,886 | | Closing (June 30, 2023) | | 612,885 | | | 909,623 | | | Increase/(decrease) | | $ | (50,351) | | | $ | 26,737 | | | | | | |
| | | | | | | | | | | | | | | | (in thousands) | | Accounts receivable, net of allowances | | Deferred revenue | Opening (December 31, 2021) | | $ | 664,511 | | | $ | 824,912 | | Closing (June 30, 2022) | | 586,815 | | | 808,020 | | | Increase/(decrease) | | $ | (77,696) | | | $ | (16,892) | | | | | | |
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