The opening and closing balances of contract assets and contract liabilities for our Hospital Operations segment are as follows: | | | | | | | | | | | | | | | | | | | | | Contract Liability – | | | | | | | Current | | | | | Contract Assets | | Advances from Medicare | | | December 31, 2019 | | $ | 170 | | | $ | — | | | | September 30, 2020 | | 171 | | | 1,270 | | | | Increase | | $ | 1 | | | $ | 1,270 | | | |
| | | | | | | | | | | | | | | | | December 31, 2018 | | $ | 169 | | | $ | — | | | | September 30, 2019 | | 163 | | | — | | | | Decrease | | $ | (6) | | | $ | — | | | |
The opening and closing balances of contract liabilities for our Ambulatory Care segment are as follows: | | | | | | | | | | | | | Contract Liability – | | | | | Current | | | | | Advances from Medicare | | | December 31, 2019 | | $ | — | | | | September 30, 2020 | | 172 | | | | Increase | | $ | 172 | | | | | | | | | December 31, 2018 | | $ | — | | | | September 30, 2019 | | — | | | | Increase | | $ | — | | | |
The opening and closing balances of Conifer’s receivables, contract asset, and current and long-term contract liabilities are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Contract Liability – | | Contract Liability – | | | | | Contract Asset – | | Current | | Long-Term | | | Receivables | | Unbilled Revenue | | Deferred Revenue | | Deferred Revenue | December 31, 2019 | | $ | 26 | | | $ | 11 | | | $ | 61 | | | $ | 18 | | September 30, 2020 | | 29 | | | 13 | | | 58 | | | 17 | | Increase/(decrease) | | $ | 3 | | | $ | 2 | | | $ | (3) | | | $ | (1) | | | | | | | | | | | December 31, 2018 | | $ | 42 | | | $ | 11 | | | $ | 61 | | | $ | 20 | | September 30, 2019 | | 86 | | | 11 | | | 72 | | | 19 | | Increase/(decrease) | | $ | 44 | | | $ | — | | | $ | 11 | | | $ | (1) | |
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