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Commitments and Contingencies - Additional Information (Detail)	12 Months Ended
	Dec. 31, 2019 Agreement
Loss Contingencies [Line Items]
Number of agreements expire in 2020	0
Labor Agreements
Loss Contingencies [Line Items]
Percentage of workforce as members of industrial trade unions	25.00%

X

- Definition

Number of agreements expire.

+ References

No definition available.

+ Details

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X

- Definition

Percentage of workforce as members of industrial trade unions.

+ References

No definition available.

+ Details

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X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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X

- Details

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