Share-Based Compensation - Summary of Stock Option Activity (Details)	Mar. 31, 2019 $ / shares shares
Options outstanding and exercisable
Options outstanding and exercisable Beginning Balance, Shares | shares	58,689
Option outstanding and exercisable Ending Balance, Shares | shares	58,689
Weighted-Average Exercise Price
Options outstanding and exercisable Beginning Balance, Weighted-Average Exercise Price | $ / shares	$ 16.62
Options outstanding and exercisable Ending Balance, Weighted-Average Exercise Price | $ / shares	$ 16.62