Investments (Policies)	6 Months Ended
	Jun. 30, 2020
Investments [Abstract]
Investment, Policy [Policy Text Block]	At each reporting period, the Company evaluates available-for-sale debt securities for any credit-related impairment when the fair value of the investment is less than its amortized cost. The Company evaluated the expected cash flows, the underlying credit quality and credit ratings of the issuers, and the potential economic impacts of COVID-19 on the issuers, noting no significant credit deterioration since purchase. As of June 30, 2020, the Company did not have the intent to sell any of the available-for-sale debt securities in an unrealized loss position. Therefore, the Company believes these losses to be temporary.