Consolidated Statements of Changes in Equity (USD $) In Thousands	Total	Common Stock	Contingent Convertible Preferred Stock	Restricted Stock Units	Additional Paid-in Capital	Exchangeable Shares of Subsidiary	Retained Earnings	Accumulated Other Comprehensive Income (Loss)	Treasury Stock	Parent	Noncontrolling Interests
Beginning Balance at Dec. 31, 2009		$ 332	$ 0	$ 81,220	$ 237,717	$ 7,937	$ 206,975	$ (8,738)	$ (293,391)		$ 1,502
Stock issued		19	46,950		125,850
Restricted stock units recognized				43,214
Restricted stock units delivered				(35,069)
Restricted stock unit cash settlement					(1,010)
Tax benefit from the delivery of restricted stock units					5,533
Exchangeable shares of subsidiary delivered						(1,359)
Dividends							(56,880)
Net income allocated to common stockholders	34,526						34,526
Currency translation adjustment, net of tax	13,865							13,865
Repurchased									(37,211)
Net income (loss) allocated to noncontrolling interests	4,895										4,895
Contributions from noncontrolling interests											164
Distributions to noncontrolling interests											(4,179)
Ending Balance at Dec. 31, 2010	372,862	351	46,950	89,365	368,090	6,578	184,621	5,127	(330,602)	370,480	2,382
Stock issued		7	0		42,794
Restricted stock units recognized				53,143
Restricted stock units delivered				(42,592)
Restricted stock unit cash settlement					0
Tax benefit from the delivery of restricted stock units					1,399
Exchangeable shares of subsidiary delivered						0
Dividends							(55,824)
Net income allocated to common stockholders	44,578						44,577
Currency translation adjustment, net of tax	(1,999)							(1,999)
Repurchased									(65,784)
Net income (loss) allocated to noncontrolling interests	6										6
Contributions from noncontrolling interests											0
Distributions to noncontrolling interests											(1,035)
Ending Balance at Dec. 31, 2011	347,554	358	46,950	99,916	412,283	6,578	173,374	3,128	(396,386)	346,201	1,353
Stock issued		7	0		51,306
Restricted stock units recognized				54,178
Restricted stock units delivered				(46,841)
Restricted stock unit cash settlement					0
Tax benefit from the delivery of restricted stock units					(4,947)
Exchangeable shares of subsidiary delivered						(4,620)
Dividends							(55,548)
Net income allocated to common stockholders	42,092						42,092
Currency translation adjustment, net of tax	3,496							3,496
Repurchased									(83,165)
Net income (loss) allocated to noncontrolling interests	0										0
Contributions from noncontrolling interests											0
Distributions to noncontrolling interests	0										0
Ending Balance at Dec. 31, 2012	$ 303,512	$ 365	$ 46,950	$ 107,253	$ 458,642	$ 1,958	$ 159,918	$ 6,624	$ (479,551)	$ 302,159	$ 1,353