Earnings per Share - Antidilutive Common Shares (Details) - shares	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
Class A
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities that have been excluded from the computation of diluted net income (loss) per share attributable to common stockholders	1,705,519	809,112
Class A | Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities that have been excluded from the computation of diluted net income (loss) per share attributable to common stockholders	22,529	100,902
Class A | Restricted stock units
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities that have been excluded from the computation of diluted net income (loss) per share attributable to common stockholders	1,682,990	708,210
Class B
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities that have been excluded from the computation of diluted net income (loss) per share attributable to common stockholders	184,350	349,867
Class B | Stock options
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities that have been excluded from the computation of diluted net income (loss) per share attributable to common stockholders	184,350	349,036
Class B | Restricted shares
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Total anti-dilutive securities that have been excluded from the computation of diluted net income (loss) per share attributable to common stockholders		831