Other Investments Investment in Joint Venture (Policies)	6 Months Ended
	Jun. 30, 2021
Investments, All Other Investments [Abstract]
Equity Method Investments and Joint Ventures Disclosure [Text Block]	Investment in Joint VentureIn September 2018, the Company acquired a non-controlling equity interest in a joint venture in Australia, whereby it has committed to licensing certain intellectual property and contributing up to $2.2 million AUD upon the achievement of specific operational milestones over a period of at least four years from the agreement execution date. As of June 30, 2021, the Company has contributed $0.6 million AUD. This equity investment is accounted for using the equity method and is classified in other long-term assets on the Company's consolidated balance sheet. The Company's share of income and losses from this equity method investment is included in gain (loss) from investment in joint venture on its consolidated statement of operations. Also included in this line item are income and expenses associated with administrative services provided to the joint venture.