Fair Value Measurements (Narrative)(Details)	3 Months Ended
Mar. 31, 2013 D
Fair Value Measurements [Abstract]
Term Of Loan	90
Cash And Cash Equivalent Maturity Period	90

Maximum number of days in which the cash or cash equivalent instrument is scheduled to mature.

No definition available.

Name:	csh_CashAndCashEquivalentMaturityPeriod
Namespace Prefix:	csh_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration