Earnings Per Share (Tables)

3 Months Ended

Mar. 31, 2020

Earnings Per Share [Abstract]

Reconciliation of Numerators and Denominators Used to Compute Basic and Diluted Earnings per Share

The following table sets forth reconciliations used to compute basic and diluted earnings per share of Class A common stock:  

	Three months ended March 31,
	2020		2019
Numerator
Net income	$	10,383	$	31,639
Less: net income attributable to non-controlling interests	1,776		4,230
Net income attributable to Planet Fitness, Inc.	$	8,607	$	27,409
Denominator
Weighted-average shares of Class A common stock outstanding - basic	79,098,468		83,805,545
Effect of dilutive securities:
Stock options	574,286		569,864
Restricted stock units	50,614		49,866
Weighted-average shares of Class A common stock outstanding - diluted	79,723,368		84,425,275
Earnings per share of Class A common stock - basic	$	0.11	$	0.33
Earnings per share of Class A common stock - diluted	$	0.11	$	0.32