Subsequent Events (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands				12 Months Ended
	Feb. 24, 2016	Feb. 23, 2016	Feb. 18, 2016	Jan. 31, 2016
Subsequent Event
Subsequent Event [Line Items]
Stock Repurchased and Retired During Period, Shares			8,060
Treasury Stock Acquired, Average Cost Per Share			$ 18.12
Stock Repurchased and Retired During Period, Value			$ 146,050
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries		$ 150,000
Revolving Credit Facility
Subsequent Event [Line Items]
Maximum amount available for dividends and stock repurchase dollar limit				$ 50,000
Maximum amount available for dividend distribution and stock repurchase percent of cumulative net income				70.00%
Balance Available For Dividend Payment And Stock Repurchase				$ 112,038
Revolving Credit Facility | Subsequent Event
Subsequent Event [Line Items]
Maximum amount available for dividends and stock repurchase dollar limit	$ 200,000
Maximum amount available for dividend distribution and stock repurchase percent of cumulative net income	70.00%