Proposed Spin Off Transaction (Details) (Spinoff [Member], USD $)						3 Months Ended	9 Months Ended
	Sep. 30, 2013 Allegion US Holding Company Inc. [Member]	Oct. 04, 2013 Allegion US Holding Company Inc. [Member] Senior Notes [Member] 5.75% Senior Notes due 2021 [Member] Subsequent Event [Member]	Sep. 30, 2013 Allegion US Holding Company Inc. [Member] Senior Secured Term Loan Facilities [Member]	Sep. 30, 2013 Allegion US Holding Company Inc. [Member] Senior Secured Term Loan Facilities [Member] Term A Facility [Member]	Sep. 30, 2013 Allegion US Holding Company Inc. [Member] Senior Secured Term Loan Facilities [Member] Term B Facility [Member]	Sep. 30, 2013 Selling and Administrative Expenses [Member]	Sep. 30, 2013 Selling and Administrative Expenses [Member]
Restructuring Cost and Reserve [Line Items]
Professional service fees related to the proposed spin-off						$ 25,700,000	$ 57,700,000
Expected indebtedness	1,300,000,000
Expected senior secured revolving credit facility permitting borrowings	500,000,000
Debt Instrument, face amount		$ 300,000,000	$ 1,000,000,000	$ 500,000,000	$ 500,000,000
Debt instrument, interest rate, stated percentage		5.75%