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Statements of Operations (Parenthetical) (USD $)
0 Months Ended 1 Months Ended 12 Months Ended
May 09, 2013
Stock_dividend
Mar. 25, 2013
Dec. 31, 2014
Dec. 31, 2013
Dec. 31, 2012
Statements of Operations [Abstract]          
Shares subject to forfeiture under condition one     1,250,000clacu_SharesSubjectToForfeitureUnderConditionOne 1,250,000clacu_SharesSubjectToForfeitureUnderConditionOne 1,250,000clacu_SharesSubjectToForfeitureUnderConditionOne
Minimum sale price of share under condition one     $ 13.00clacu_MinimumSalePriceOfShareUnderConditionOne $ 13.00clacu_MinimumSalePriceOfShareUnderConditionOne $ 13.00clacu_MinimumSalePriceOfShareUnderConditionOne
Common shares contributed by Company's Sponsor   105,184clacu_NumberOfSharesContributedBySponsor      
Share dividend authorized by Board of Directors for each outstanding share of common stock 0.2clacu_StockDividendRatioOfSharesIssuedForEachOutstandingShareOfCommonStock