Consolidated Statements of Changes in Shareholders’ Equity (Parenthetical) - $ / shares		12 Months Ended
Apr. 23, 2015	Dec. 31, 2015
Consolidated Statements of Changes in Shareholders’ Equity
Decrease in common stock (per share)	$ 3.00	$ 3.00

The decrease in equity per share resulting from a reduction in issued capital.

No definition available.

Name:	omab_ReductionOfIssuedCapitalPerShare
Namespace Prefix:	omab_
Data Type:	num:perShareItemType
Balance Type:	na
Period Type:	duration