Stock-Based Compensation - Stock Options (Details) - USD ($)	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Number of Stock Options
Balance at the beginning of the period (in shares)	87,497
Expired (in shares)	(87,497)
Balance at the end of the period (in shares)		87,497
Weighted Average Exercise Price
Balance at the beginning of the period (in dollars per share)	$ 11.23
Expired (in dollars per share)	$ 11.23
Balance at the end of the period (in dollars per share)		$ 11.23
Options granted (in shares)	0	0	0
Options vested (in shares)	0	0	0
Excess tax benefits from disqualifying dispositions	$ 0	$ 0	$ 0
Options exercised (in shares)	0	0	0
Proceeds from exercise of stock options	$ 0	$ 0	$ 0
Stock options
Weighted Average Exercise Price
Unrecognized compensation expense related to share-based compensation plans	$ 0