Shareholders' Equity - Narrative (Details)	3 Months Ended
	Mar. 31, 2020 vote shares	Dec. 31, 2019 shares
Class A Common Stock
Class of Stock [Line Items]
Common stock outstanding (in shares)	34,173,819	34,040,934
Number of votes per share (vote) | vote	1
Class B Common Stock
Class of Stock [Line Items]
Common stock outstanding (in shares)	22,706,711	22,847,045
Number of votes per share (vote) | vote	1
Performance-Based Restricted Stock Units
Class of Stock [Line Items]
Shares granted during period (in shares)	1,187,811