Fair Value Measurements (Narrative)(Details)	6 Months Ended
Jun. 30, 2015
Fair Value Disclosures [Abstract]
Cash And Cash Equivalent Maturity Period	90 days

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:durationItemType
Balance Type:	na
Period Type:	duration