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Subsequent events	12 Months Ended
	Dec. 31, 2018
Subsequent Events [Abstract]
Subsequent events	Subsequent events On March 26, 2019, the Company approved a dividend distribution to all Class A and Class B shareholders of $0.11 per share to be paid in three installments, as follows: $0.05 per share on April 12, 2019, $0.03 per share on August 14, 2019, and $0.03 per share on December 12, 2019.

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- References

No definition available.

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- Definition

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 855
-URI http://asc.fasb.org/topic&trid=2122774

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