CONSOLIDATED STATEMENTS OF EQUITY (USD $) In Thousands, except Share data, unless otherwise specified	Total	Common Stock	Additional Paid-in Capital	Earnings in Excess of Distributions (Distributions in Excess of Earnings)	Accumulated Other Comprehensive Items, Net	Noncontrolling Interests
Balance at Dec. 31, 2013	$ 1,051,734	$ 1,914	$ 980,164	$ 67,820	$ (8,660)	$ 10,496
Balance (in shares) at Dec. 31, 2013		191,426,920
Increase (Decrease) in Stockholders' Equity
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation	4,821	5	4,816
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation (in shares)		494,009
Parent cash dividends declared	(52,290)			(52,290)
Currency translation adjustment	1,788				1,677	111
Market Value Adjustments for Securities	0
Net Income (loss)	42,109			41,667		442
Noncontrolling interests dividends	(196)					(196)
Purchase of noncontrolling interests	(2,895)		(395)			(2,500)
Balance at Mar. 31, 2014	1,045,071	1,919	984,585	57,197	(6,983)	8,353
Balance (in shares) at Mar. 31, 2014		191,920,929
Balance at Dec. 31, 2014	869,955	2,098	1,588,841	(659,553)	(75,031)	13,600
Balance (in shares) at Dec. 31, 2014	209,818,812	209,818,812
Increase (Decrease) in Stockholders' Equity
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation	1,994	7	1,987
Issuance of shares under employee stock purchase plan and option plans and stock-based compensation (in shares)		708,425
Parent cash dividends declared	(100,539)			(100,539)
Currency translation adjustment	(56,175)				(56,074)	(101)
Market Value Adjustments for Securities	23				23
Net Income (loss)	41,739			41,096		643
Noncontrolling interests dividends	(495)					(495)
Balance at Mar. 31, 2015	$ 756,502	$ 2,105	$ 1,590,828	$ (718,996)	$ (131,082)	$ 13,647
Balance (in shares) at Mar. 31, 2015	210,527,237	210,527,237