Annual report pursuant to Section 13 and 15(d)

Description of Business, Basis of Presentation and Summary of Significant Accounting Policies (Details Textual)

v2.4.1.9
Description of Business, Basis of Presentation and Summary of Significant Accounting Policies (Details Textual) (USD $)
In Millions, unless otherwise specified
12 Months Ended
Feb. 28, 2015
stock_based_compensation_plan
class_of_stock
Feb. 28, 2014
Feb. 28, 2013
Accounting Policies [Abstract]      
Advertising expense $ 406.1us-gaap_AdvertisingExpense $ 278.5us-gaap_AdvertisingExpense $ 121.9us-gaap_AdvertisingExpense
Number of classes of outstanding common stock 2stz_NumberOfClassesOfCommonStockWithMaterialNumberOfSharesOutstanding    
Number of stock-based employee compensation plans 2stz_NumberOfShareBasedCompensationArrangementPlans