v3.10.0.1

Contract assets and contract liabilities (Tables) | 9 Months Ended
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Sep. 30, 2018
Contract assets and contract liabilities |
Schedule of summary of the contract asset, net and contract liability, net activity and amounts of contract liability balance and performance obligations included in revenues | The opening and closing balances of our contract asset, net, contract liability, net, and receivables balances from contracts with customers for the nine months ended September 30, 2018 are as follows:
|  | Contract assets, net |  | Contract liabilities, net |
Balance at January 1, 2018 |  | $ | 798 |  | $ | 204,472 |
Balance at September 30, 2018 |  | 911 |  | 206,736 |
Change |  | $ | 113 |  | $ | 2,264 |
Revenues for the three and nine months ended September 30, 2018 include the following:
|  | Three Months Ended September 30, 2018 |  | Nine Months Ended September 30, 2018 |
Amounts included in the beginning of period contract liability balance |  | $ | 16,572 |  | $ | 66,864 |
Amounts associated with performance obligations satisfied in previous periods |  | 67 |  | 257 |

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- Definition Tabular disclosure of contract balances and changes in contract balances. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 50 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130551-203045 + Details
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