Condensed Consolidated Statements of Stockholders' Deficiency - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance (in shares)	140,914,642
Beginning Balance	$ (547,366)	$ (331,760)
Impact of adoption of new accounting standards	(1,550)	(12,857)
Net income	15,033	3,664
Total other comprehensive income	581	250
Distributions and dividends on common stock ($0.40 per share)	(58,776)	(55,900)
Effect of stock dividend		0
Surrender of shares in connection with restricted stock vesting	(174)
Stock-based compensation	2,436	2,384
Distributions to non-controlling interest	(285)
Ending Balance	$ (590,101)	$ (394,219)
Beginning Balance (in shares)	140,899,065
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance (in shares)	140,914,642	134,365,424
Beginning Balance	$ 14,092	$ 13,437
Effect of stock dividend (in shares)		6,718,271
Effect of stock dividend		$ 672
Surrender of shares in connection with restricted stock vesting (in shares)	(15,577)
Surrender of shares in connection with restricted stock vesting	$ (2)
Ending Balance	$ 14,090	$ 14,109
Beginning Balance (in shares)	140,899,065	141,083,695
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	$ 0	$ 0
Distributions and dividends on common stock ($0.40 per share)	(2,264)	(2,384)
Surrender of shares in connection with restricted stock vesting	(172)
Stock-based compensation	2,436	2,384
Ending Balance	0	0
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(542,169)	(414,785)
Impact of adoption of new accounting standards	3,147	1,094
Net income	14,953	7,211
Distributions and dividends on common stock ($0.40 per share)	(56,512)	(53,516)
Effect of stock dividend		(672)
Ending Balance	(580,581)	(460,668)
AOCI Attributable to Parent
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	(19,982)	(12,571)
Impact of adoption of new accounting standards	(4,697)	(6,036)
Total other comprehensive income	581	250
Ending Balance	(24,098)	(18,357)
Non-controlling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance	693	82,159
Impact of adoption of new accounting standards		(7,915)
Net income	80	(3,547)
Distributions to non-controlling interest	(285)
Ending Balance	$ 488	$ 70,697