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Property and Equipment - Schedule of Cost Basis and Estimated Useful Lives of Property and Equipment (Parenthetical) (Detail) $ in Thousands	Dec. 31, 2017 USD ($)
Property Plant And Equipment Useful Life And Values [Abstract]
Culinary equipment cost basis	$ 0

X

- Definition

Culinary equipment.

+ References

No definition available.

+ Details

Name:	ceco_CulinaryEquipment
Namespace Prefix:	ceco_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Property plant and equipment useful life and values.

+ References

No definition available.

+ Details

Name:	ceco_PropertyPlantAndEquipmentUsefulLifeAndValuesAbstract
Namespace Prefix:	ceco_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration