Share-Based Compensation - Additional Information (Detail) (USD $) In Millions, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Share-based compensation cost capitalized	$ 4.1	$ 6.1	$ 8.8
Capitalized costs remained in finished goods	2.4	3.3
Stock Options [Member]
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Shares of common stock	57,900,000
Shares available for future grants	10,400,000
Vesting period	4 years
Maximum contractual life	10 years
Unrecognized share-based payment expense	33.5
Weighted average period expected to be recognized	2 years 8 months 12 days
Stock Options [Member] | Minimum [Member]
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Requisite service period for stock award	1 year
Stock Options [Member] | Maximum [Member]
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Requisite service period for stock award	4 years
RSUs and other [Member]
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Weighted average period expected to be recognized	2 years 2 months 12 days
Estimated outstanding RSU	875,900
Unrecognized share-based payment expense related to nonvested stock options	34.0
Fair value of RSUs vesting during the year	$ 32.5	$ 18.9	$ 11.8
RSUs and other [Member] | Minimum [Member]
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period	3 years
Requisite service period for stock award	1 year
RSUs and other [Member] | Maximum [Member]
Compensation Related Costs Share Based Payments Disclosure [Line Items]
Vesting period	5 years
Requisite service period for stock award	5 years