Description of Rights and Privileges of Capital Stock-Capital Structure Consists of Common Stock and Class A Common Stock (Details)	Jun. 02, 2018 shares class vote
Schedule of Stockholders Equity [Line Items]
Number of classes of capital stock | class	2
Common Stock
Schedule of Stockholders Equity [Line Items]
Number of votes per share of stock	1
Number of votes per share of stock converted from Class A | shares	1
Class A Convertible Common Stock
Schedule of Stockholders Equity [Line Items]
Number of votes per share of stock	10