Acquisitions - Acquisition Consideration (Details) - Zale $ / shares in Units, $ in Millions	May. 29, 2014 USD ($) $ / shares
Business Acquisition [Line Items]
Cash consideration paid to Zale Corporation shareholders ($21 per share)	$ 910.2
Cash consideration paid for settlement of Zale Corporation stock options, restricted share awards and long term incentive plan awards	69.6
Cash paid to extinguish Zale Corporation outstanding debt as of May 29, 2014	478.2
Total consideration transferred	$ 1,458.0
Consideration received by acquiree shareholders (in dollars per share) | $ / shares	$ 21.00