Share-Based Compensation and Benefit Plans (Profit Sharing and Savings Plan) (Narrative) (Detail) (Profit Sharing and Savings Plan Member, USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Profit Sharing and Savings Plan Member
Other employee benefit plan descriptions	The Company sponsors a contributory profit sharing and savings plan that covers substantially all employees who are at least 21 years of age and have at least six months of service. The Company makes matching contributions equal to 100% of the first 2% of each employee’s wages that are contributed and 25% of the next 4% of each employee’s wages that are contributed.
Issuance of common stock under employee benefit plans, net of forfeitures and shares withheld to cover taxes, shares	0	0	0
Profit sharing and savings plan cost recognized	$ 16.5	$ 15.6	$ 11.8