Stock-Based Compensation and Stock Awards - Schedule of Information for Stock Option Plans (Detail) (USD $)	12 Months Ended
	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of securities to be issued upon exercise of outstanding options	512,895
Weighted-average exercise price of outstanding options	$ 56.25
Number of securities remaining available for future issuance under equity compensation plan	772,736
Equity Compensation Plans Approved By Stockholders [Member] | Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of securities to be issued upon exercise of outstanding options	512,895
Weighted-average exercise price of outstanding options	$ 56.25
Number of securities remaining available for future issuance under equity compensation plan	772,736
Equity Compensation Plans Not Approved By Stockholders [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of securities to be issued upon exercise of outstanding options
Weighted-average exercise price of outstanding options	Not applicable
Number of securities remaining available for future issuance under equity compensation plan