|12 Months Ended|
Dec. 31, 2018
|Disclosure of contingent liabilities [abstract]|
|Schedule of Minimum Annual Payments Under Long-Term Lease Agreements for Office Premises and Equipment||
The minimum annual payments under long-term lease agreements for office premises and equipment expiring over the next five years are as follows:
The disclosure of finance leases and operating leases by the lessor.
Reference 1: http://www.xbrl.org/2003/role/disclosureRef