Summarized Quarterly Data (Unaudited) - Balance Sheet (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Mar. 15, 2018	Dec. 31, 2017	Dec. 31, 2016	Nov. 01, 2016	Dec. 31, 2015
Condensed Financial Statements, Captions [Line Items]
Total current assets	$ 43,638	$ 37,772	$ 29,828	$ 39,458		$ 15,896
Property and equipment, net	697,679					26,863
Capitalized Development Projects costs	5,724					566,797
Restricted cash and cash equivalents for Development Projects	21,039					41,982	$ 26,384
Intangible assets	45,216					51,000
Cash collateral for deposit bond	0					35,000
Other assets	33,130	287	282	234		251
Total assets	846,426	828,312	778,526	815,194		832,238
Total current liabilities	96,498	100,199	93,817	93,299		96,306
Long-term debt, net of current portion	495,693					455,148
Long-term loan, related party, net of debt issuance costs	30,954					0
Other long-term liabilities	11,442	9,732	9,372	9,869		9,463
Total liabilities	634,587	648,640	565,933	566,215		560,917
Accumulated deficit	(439,910)	(398,302)	(364,378)	(327,351)		(301,032)
Total stockholders’ equity	211,839	179,672	212,593	248,979		271,321	$ 279,566		$ (1,459)
Total liabilities and stockholders’ equity	$ 846,426	$ 828,312	$ 778,526	$ 815,194		$ 832,238
Common stock, par value (usd per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01		$ 0.01
Common stock, shares authorized (in shares)	150,000,000	150,000,000	150,000,000	150,000,000		150,000,000		150,000,000
Common stock, shares issued (shares)	34,403,250	32,717,000	32,717,000	32,560,000		32,559,617
Common stock, shares outstanding (shares)	34,403,250	32,717,000	32,717,000	32,560,000		32,559,617
Preferred stock, shares authorized (in shares)								5,000,000
Preferred stock, shares issued (shares)					200,000
Scenario, Previously Reported
Condensed Financial Statements, Captions [Line Items]
Total current assets		$ 37,772	$ 29,828	$ 39,458
Other assets		3,307	3,471	3,592
Total assets		831,332	781,715	818,552
Total current liabilities		100,199	93,817	93,299
Other long-term liabilities		7,555	7,540	7,905
Total liabilities		646,463	564,101	564,251
Accumulated deficit		(393,105)	(359,357)	(322,029)
Total stockholders’ equity		184,869	217,614	254,301
Total liabilities and stockholders’ equity		831,332	781,715	818,552
Restatement Adjustment
Condensed Financial Statements, Captions [Line Items]
Total current assets		0	0	0
Other assets		(3,020)	(3,189)	(3,358)
Total assets		(3,020)	(3,189)	(3,358)
Total current liabilities		0	0	0
Other long-term liabilities		2,177	1,832	1,964
Total liabilities		2,177	1,832	1,964
Accumulated deficit		(5,197)	(5,021)	(5,322)
Total stockholders’ equity		(5,197)	(5,021)	(5,322)
Total liabilities and stockholders’ equity		$ (3,020)	$ (3,189)	$ (3,358)
Series B
Condensed Financial Statements, Captions [Line Items]
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01	$ 0.01	$ 0.01		$ 0.01
Preferred stock, per share liquidation value (usd per share)	$ 29	$ 29	$ 29	$ 29		$ 29
Preferred stock, shares authorized (in shares)	5,000,000	5,000,000	5,000,000	5,000,000		5,000,000
Preferred stock, shares issued (shares)	44,258	44,258	44,258	44,258		44,258
Preferred stock, shares outstanding (in shares)	44,258	44,258	44,258	44,258		44,258