Stockholder's Equity Issuance of Stock (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended
	May 27, 2020	Jun. 30, 2020
Class of Stock [Line Items]
Issuance of common stock upon underwritten public offering, net of issuance cost		$ 134,759
Public Stock Offering [Member]
Class of Stock [Line Items]
Shares issued (in shares)	865,963
Shares Issued, Price Per Share	$ 166.00
Issuance of common stock upon underwritten public offering, net of issuance cost	$ 134,800
Underwriting discounts and commissions	8,600
Other issuance costs	$ 400