Condensed Consolidated Statements of Stockholders' Deficiency - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
	Sep. 30, 2016	Sep. 30, 2016
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		$ (122,161)
Beginning Balance (in shares)		123,792,329
Net income	$ 25,707	$ 74,437
Total other comprehensive income	1,683	1,457
Comprehensive income (loss)	27,390	75,894
Distributions and dividends on common stock		(149,189)
Restricted stock grant		0
Surrender of shares in connection with restricted stock vesting		(1,968)
Effect of stock dividend		0
Cancellation of shares under share lending agreement		0
Exercise of stock options		398
Tax benefit of options exercised		412
Stock-based compensation		7,277
Contributions from non-controlling interest		248
Distributions to non-controlling interest		(9,508)
Ending Balance	$ (198,597)	$ (198,597)
Beginning Balance (in shares)	123,839,497	123,839,497
Common Stock
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		$ 12,379
Beginning Balance (in shares)		123,792,329
Restricted stock grant (in shares)		50,000
Restricted stock grant		$ 5
Surrender of shares in connection with restricted stock vesting (in shares)		(87,561)
Surrender of shares in connection with restricted stock vesting		$ (8)
Effect of stock dividend (in shares)		6,087,035
Effect of stock dividend		$ 609
Cancellation of shares under share lending agreement (in shares)		(2,034,212)
Cancellation of shares under share lending agreement		$ (204)
Exercise of stock options (in shares)		31,906
Exercise of stock options		$ 3
Ending Balance	$ 12,784	$ 12,784
Beginning Balance (in shares)	127,839,497	127,839,497
Additional Paid-in Capital
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		$ 0
Distributions and dividends on common stock		(6,323)
Restricted stock grant		(5)
Surrender of shares in connection with restricted stock vesting		(1,960)
Cancellation of shares under share lending agreement		204
Exercise of stock options		395
Tax benefit of options exercised		412
Stock-based compensation		7,277
Ending Balance	$ 0	0
Accumulated Deficit
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		(210,113)
Net income		66,528
Distributions and dividends on common stock		(142,866)
Effect of stock dividend		(609)
Ending Balance	(287,060)	(287,060)
Accumulated Other Comprehensive Income
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		(8,313)
Total other comprehensive income		1,457
Ending Balance	(6,856)	(6,856)
Non-controlling Interest
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Beginning Balance		83,886
Net income		7,909
Contributions from non-controlling interest		248
Distributions to non-controlling interest		(9,508)
Ending Balance	$ 82,535	$ 82,535