Consolidated Statements of Shareholders' Equity (Unaudited) (USD $) In Thousands	Total	Common shares	Treasury shares	Additional paid-in capital	Accumulated other comprehensive (loss)	Retained earnings
Balance - Beginning of period at Dec. 31, 2012		$ 26,722	$ (7,836)	$ 2,160,478	$ (2,953)	$ 1,844,416
Common shares issued, net		47		3,074
Repurchase of common shares			(333)	(69,358)
Share compensation expenses				2,318
Other comprehensive income (loss)	(9,785)				(9,785)
Dividends						(266,143)
Net income	220,694					220,694
Net (income) loss attributable to noncontrolling interest	2,549					2,549
Noncontrolling interest	431,144
Total shareholders' equity at Mar. 31, 2013	4,335,034
Balance - End of period at Mar. 31, 2013	3,903,890	26,769	(8,169)	2,096,512	(12,738)	1,801,516
Balance - Beginning of period at Dec. 31, 2013	3,704,094	27,036	(10,228)	1,677,894	(617)	2,010,009
Common shares issued, net		19		2,011
Repurchase of common shares			(939)	(196,400)
Share compensation expenses				7,147
Other comprehensive income (loss)	462				462
Dividends						(29,718)
Net income	205,897					205,897
Net (income) loss attributable to noncontrolling interest	(43,509)					(43,509)
Noncontrolling interest	540,934
Total shareholders' equity at Mar. 31, 2014	4,189,998
Balance - End of period at Mar. 31, 2014	$ 3,649,064	$ 27,055	$ (11,167)	$ 1,490,652	$ (155)	$ 2,142,679