Schedule I - Condensed Financial Information of Registrant - Parent Company Condensed Balance Sheets (Details) - USD ($) $ / shares in Units, $ in Thousands	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Current assets:
Cash and cash equivalents	$ 153,191	$ 134,710
Other current assets and prepaid expenses	39,962	27,170
Total current assets	394,525	823,013
Investments	28,080	10,729
Operating lease right-of-use assets	38,725	44,228
Other assets	8,679	9,534
Total assets	2,167,259	2,399,715
Current liabilities:
Accounts payable	66,993	82,040
Accrued expenses	98,269	193,493
Current maturities of operating leases	11,628	11,624
Current portion of convertible notes	3,050	0
Current portion of notes payable	33,540	14,695
Total current liabilities	213,480	330,008
Operating lease liabilities	27,963	33,097
Convertible notes	210,371	187,935
Deferred tax liabilities, net	126,426	148,487
Total long-term liabilities	392,131	384,581
Total liabilities	605,611	714,589
Equity:
Common Stock - $0.01 par value, 1,000,000,000 shares authorized; 781,306,164 and 690,082,283 shares issued at December 31, 2022 and 2021, respectively	$ 7,813	$ 6,901
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Treasury Stock, at cost - 8,655,082 shares at December 31, 2022 and 2021, respectively	$ (1,791)	$ (1,791)
Treasury stock (in shares)	8,655,082	8,655,082
Additional paid-in capital	$ 3,421,872	$ 3,222,487
Accumulated other comprehensive income (loss)	(43,323)	(30,495)
Accumulated deficit	(1,822,923)	(1,511,976)
Total shareholders’ equity	1,561,648	1,685,126	$ 1,671,551	$ 1,614,759
Total liabilities and equity	2,167,259	2,399,715
Parent Company
Current assets:
Cash and cash equivalents	104,783	24,592
Other current assets and prepaid expenses	14,666	2,620
Total current assets	119,449	27,212
Investments	1,665,355	1,870,743
Operating lease right-of-use assets	1,822	3,030
Other assets	4	1
Total assets	1,786,630	1,900,986
Current liabilities:
Accounts payable	311	317
Accrued expenses	6,238	21,484
Current maturities of operating leases	1,225	1,203
Current portion of convertible notes	3,050	0
Current portion of notes payable	2,615	2,615
Total current liabilities	13,439	25,619
Operating lease liabilities	693	1,827
Convertible notes	210,371	187,935
Deferred tax liabilities, net	479	479
Total long-term liabilities	211,543	190,241
Total liabilities	224,982	215,860
Equity:
Common Stock - $0.01 par value, 1,000,000,000 shares authorized; 781,306,164 and 690,082,283 shares issued at December 31, 2022 and 2021, respectively	$ 7,813	$ 6,901
Common Stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common Stock, shares authorized (in shares)	1,000,000,000	1,000,000,000
Common Stock, shares issued (in shares)	781,306,164	690,082,283
Treasury Stock, at cost - 8,655,082 shares at December 31, 2022 and 2021, respectively	$ (1,791)	$ (1,791)
Treasury stock (in shares)	8,655,082	8,655,082
Additional paid-in capital	$ 3,421,872	$ 3,222,487
Accumulated other comprehensive income (loss)	(43,323)	(30,495)
Accumulated deficit	(1,822,923)	(1,511,976)
Total shareholders’ equity	1,561,648	1,685,126
Total liabilities and equity	$ 1,786,630	$ 1,900,986