Deferred Revenue - ESP and Voucher Promotions (Details) - USD ($) $ in Millions	Jan. 30, 2016	Jan. 31, 2015	Feb. 01, 2014
Deferred Revenue Arrangement [Line Items]
Voucher promotions and other	$ 28.2	$ 22.7
Total deferred revenue	889.4	811.9
Current liabilities	260.3	248.0
Non-current liabilities	629.1	563.9
Sterling Jewelers
Deferred Revenue Arrangement [Line Items]
ESP deferred revenue	715.1	668.9	$ 601.2
Zale Jewelry
Deferred Revenue Arrangement [Line Items]
ESP deferred revenue	$ 146.1	$ 120.3