Payment Of Dividends (Detail) (USD $) In Millions, except Per Share data, unless otherwise specified	1 Months Ended	3 Months Ended					6 Months Ended
	Feb. 27, 2013	Aug. 03, 2013		May 04, 2013		Jul. 28, 2012	Aug. 03, 2013	Jul. 28, 2012
Dividends Payable [Line Items]
Cash dividend per share		$ 0.15		$ 0.15			$ 0.15
Date Declared		Jun. 14, 2013		Mar. 27, 2013
Record Date		Aug. 02, 2013		May 03, 2013
Payment Date		Aug. 28, 2013	[1]	May 29, 2013	[1]
Total Dividends	$ 9.8	$ 12.1	[2]	$ 12.1		$ 10.3	$ 21.9	$ 19.0

[1] Signet's dividend policy results in the dividend payment date being a quarter in arrears from the declaration date. As such, the fourth quarter Fiscal 2013 $0.12 per share cash dividend was paid out on February 27, 2013 in the aggregate amount of $9.8 million.

[2] As of August 3, 2013, $12.1 million has been recorded in accrued expenses and other current liabilities reflecting the cash dividend declared for the second quarter of Fiscal 2014, which is not presented in the condensed consolidated statement of cash flows as it is a non-cash transaction.