Condensed Consolidated Statements of Stockholders' Deficiency - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2018	Sep. 30, 2018	Jan. 01, 2018
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance (in shares)		134,365,424
Beginning Balance		$ (331,760)
Impact of adoption of new accounting standards			$ (12,857)
Net income	$ 15,028	37,688
Total other comprehensive income	318	887
Comprehensive income	15,346	38,575
Distributions and dividends on common stock		(167,656)
Restricted stock grant		0
Surrender of shares in connection with restricted stock vesting		(3,656)
Effect of stock dividend		0
Stock-based compensation		7,425
Distributions to non-controlling interest		(2,521)
Ending Balance	$ (472,450)	$ (472,450)
Beginning Balance (in shares)	140,914,642	140,914,642
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance (in shares)		134,365,424
Beginning Balance		$ 13,437
Restricted stock grant (in shares)		31,666
Restricted stock grant		$ 3
Surrender of shares in connection with restricted stock vesting (in shares)		(192,119)
Surrender of shares in connection with restricted stock vesting		$ (19)
Effect of stock dividend (in shares)		6,709,671
Effect of stock dividend		$ 671
Ending Balance	$ 14,092	$ 14,092
Beginning Balance (in shares)	140,914,642	140,914,642
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		$ 0
Distributions and dividends on common stock		(3,785)
Restricted stock grant		(3)
Surrender of shares in connection with restricted stock vesting		(3,637)
Stock-based compensation		7,425
Ending Balance	$ 0	0
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		(414,785)
Impact of adoption of new accounting standards			1,094
Net income		37,031
Distributions and dividends on common stock		(163,871)
Effect of stock dividend		(671)
Ending Balance	(541,202)	(541,202)
AOCI Attributable to Parent
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		(12,571)
Impact of adoption of new accounting standards			(6,036)
Total other comprehensive income		887
Ending Balance	(17,720)	(17,720)
Non-controlling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		82,159
Impact of adoption of new accounting standards			$ (7,915)
Net income		657
Distributions to non-controlling interest		(2,521)
Ending Balance	$ 72,380	$ 72,380