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ANP Restructuring (Details) - USD ($) $ in Thousands	1 Months Ended				3 Months Ended	9 Months Ended
	Aug. 31, 2021	Jul. 31, 2021	May 31, 2021	Jul. 31, 2018	Sep. 30, 2021	Sep. 30, 2021
Restructuring and Related Cost [Line Items]
Gain on deconsolidation of subsidiary						$ 13,587
Equity method investment					$ 4,193	$ 4,193
Hanxin
Restructuring and Related Cost [Line Items]
Ownership after transaction		20.00%			14.00%	14.00%
Gain on deconsolidation of subsidiary					$ 13,600	$ 13,600
Deconsolidation, revaluation of retained investment, gain					2,700	2,700
Equity method investment					$ 4,200	$ 4,200
ANP
Restructuring and Related Cost [Line Items]
Ownership percentage		100.00%
ANP
Restructuring and Related Cost [Line Items]
Proceeds from private placement				$ 56,300
Equity interest retained post private placement				58.00%
Percentage of ownership interest acquired	15.00%		18.00%
Payments for additional ownership interest	$ 22,500		$ 29,400
Percentage of additional ownership interest from shares repurchase			10.00%
Ownership after transaction	100.00%		85.00%
ANP | Hanxin
Restructuring and Related Cost [Line Items]
Decrease in ownership percentage			80.00%
Hanxin
Restructuring and Related Cost [Line Items]
Ownership after transaction					14.00%	14.00%

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