Stock-based compensation (Tables)

12 Months Ended

Dec. 31, 2021

Share-based Payment Arrangement [Abstract]

Schedule of Changes in Restricted Stock Units

The following table summarizes information about the changes in restricted stock units for the year ended December 31, 2021:

	Year Ended December 31,
	2021
	Restricted Stock Units Outstanding	Weighted Average Grant Date Fair Value
Balance at beginning of period	1,047,071	$	26.06
Granted	194,388	43.05
Vested	(710,730)	22.99
Forfeited	(38,409)	28.96
Balance at end of period	492,320	$	36.06

Schedule of Changes in Performance Stock Units

The following table summarizes information about the changes in performance stock units as of and for the year ended December 31, 2021.

	Year Ended December 31,
	2021
	Performance Stock Units Outstanding	Weighted Average Grant Date Fair Value
Balance at beginning of period (unvested)	53,147	$	36.21
Granted	65,304	43.20
Vested	—	—
Forfeited or expired	(2,701)	37.11
Balance at end of period (unvested)	115,750	$	40.13