XML 67 R59.htm IDEA: XBRL DOCUMENT

Quarterly Financial Data - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2012	Dec. 31, 2010
Quarterly Financial Information [Line Items]
Increase in operating expenses	$ 65,000	$ 65,000
Gain from other income	16,084	16,084	4,421
Income tax benefit from initial public offering	$ (10,572)	$ (10,572)

The profit or loss on sales of previously unissued stock by subsidiaries or equity investees made to investors outside the consolidated group that is not reported as operating income. Represents the difference in the parent company's carrying amount of the equity interest in the subsidiary or equity investee immediately before and after the transaction.

+ References+ Details