Related-party Transactions (Tables) |
12 Months Ended | |||||||||||||||||||||||||||||||||||||||
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Dec. 31, 2018 | ||||||||||||||||||||||||||||||||||||||||
| Related Party Transactions [Abstract] | ||||||||||||||||||||||||||||||||||||||||
| Schedule of Amounts Related to Revenue and Other Income and Purchase of Goods and Services Incurred in Transactions |
The following table presents the amounts related to revenue and other income and purchase of goods and services incurred in transactions with these related parties:
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| Schedule of Amounts Related to Receivable and Payable Balances with Related Parties |
The following table presents the amounts related to receivable and payable balances with these related parties:
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