Consolidated Statements of Changes in Equity (USD $) In Thousands, unless otherwise specified	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, 2012		$ 365	$ 46,950	$ 107,253	$ 458,642	$ 1,958	$ 159,918	$ 6,624	$ (479,551)		$ 1,353
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued		14			77,920
Convertible Preferred Stock Converted to Other Securities			(32,504)
Restricted stock units recognized, net of forfeitures				56,100
Restricted stock units delivered				(46,095)
Tax (expense) from the delivery of restricted stock units					(2,029)
Exchangeable shares of subsidiary delivered						0
Dividends							(56,225)
Tax benefit from payment of restricted stock unit dividends							2,037
Net income allocated to common stockholders							46,682
Currency translation adjustment, net of tax								(15,985)
Repurchased									(55,406)
Net income allocated to noncontrolling interests											0
Distributions to noncontrolling interests											(311)
Increases (decreases) in noncontrolling interests	0
Ending Balance at Dec. 31, 2013	277,710	379	14,446	117,258	534,533	1,958	152,412	(9,361)	(534,957)	276,668	1,042
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Stock issued		10			61,492
Convertible Preferred Stock Converted to Other Securities			0
Restricted stock units recognized, net of forfeitures				30,352
Restricted stock units delivered				(61,903)
Tax (expense) from the delivery of restricted stock units					(4,036)
Exchangeable shares of subsidiary delivered						0
Dividends							(42,191)
Tax benefit from payment of restricted stock unit dividends							1,424
Net income allocated to common stockholders	28,165						28,165
Currency translation adjustment, net of tax	(3,374)							(3,374)
Repurchased									(29,586)
Net income allocated to noncontrolling interests	0										0
Distributions to noncontrolling interests											0
Increases (decreases) in noncontrolling interests	(348)
Ending Balance at Sep. 30, 2014	$ 257,715	$ 389	$ 14,446	$ 85,707	$ 591,989	$ 1,958	$ 139,810	$ (12,735)	$ (564,543)	$ 257,021	$ 694