XML 74 R64.htm IDEA: XBRL DOCUMENT v3.4.0.3

Guarantor Financial Information Guarantor Financial Information Narrative (Details)	3 Months Ended
	Mar. 31, 2016
Guarantor Subsidiary, Ownership Percentage	100.00%

X

- Definition

Guarantor Subsidiary, Ownership Percentage

+ References

No definition available.

+ Details

Name:	cas_GuarantorSubsidiaryOwnershipPercentage
Namespace Prefix:	cas_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration