Equity Compensation Plan - Summary of Option Activity Under Plan (Details)	12 Months Ended
	Dec. 31, 2019 $ / shares shares
Share Options Outstanding
Beginning balance (in shares) | shares	18,187
Granted (in shares) | shares	40,937
Ending balance (in shares) | shares	59,124
Weighted Average Exercise Price
Beginning Balance (in dollars per share) | $ / shares	$ 42.24
Granted (in dollars per share) | $ / shares	66.31
Ending Balance (in dollars per share) | $ / shares	$ 58.91