CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 3 months ended Mar. 31, 2016 - USD ($) $ in Thousands	Total	Common Stock	Limited Voting Stock	Additional Paid-In Capital	Accumulated Other Comprehensive Loss	Accumulated Deficit	Noncontrolling Interests
Beginning balance at Dec. 31, 2015	$ 1,636,211	$ 112	$ 4	$ 1,854,913	$ (6,199)	$ (460,131)	$ 247,512
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	64,541					61,393	3,148
Other comprehensive loss	(4,287)				(4,108)		(179)
Common dividends declared – $0.1875 per share	(21,790)					(20,881)	(909)
Share-based compensation	1,358			1,358
Distributions to noncontrolling interests	(25)						(25)
Ending balance at Mar. 31, 2016	$ 1,676,008	$ 112	$ 4	$ 1,856,271	$ (10,307)	$ (419,619)	$ 249,547