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Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2021

Share-based Payment Arrangement [Abstract]

Restricted Stock Awards

The following table summarizes the Company's RSA activity as of June 30,:

			2021												2020
			Number of Shares						Weighted-Average Grant Date Fair Value						Number of Shares						Weighted-Average Grant Date Fair Value
Balance December 31,			57,448						$	11.75					52,755						$	14.69
Granted			44,708						29.30						65,959						11.75
Forfeited			(4,266)						29.30						—						—
Vested			(57,448)						11.75						(52,755)						14.69
Balance June 30,			40,442						$	29.30					65,959						$	11.75

Restricted Stock Units

The following table summarizes the Company's Time-Based RSU activity as of June 30,:

			2021												2020
			Number of Shares						Weighted-Average Grant Date Fair Value						Number of Shares						Weighted-Average Grant Date Fair Value
Balance December 31,			1,125,766						$	13.44					1,065,305						$	12.78
Granted			405,505						27.20						174,020						16.78
Forfeited			(65,153)						16.74						(15,106)						13.45
Vested			(147,592)						12.90						(323,678)						12.93
Balance June 30,			1,318,526						$	17.57					900,541						$	13.49

The following table summarizes the Company's Performance-Based RSU award activity as of June 30,:

			2021												2020
			Number of Shares						Weighted-Average Grant Date Fair Value						Number of Shares						Weighted-Average Grant Date Fair Value
Balance December 31,			593,388						$	14.88					288,281						$	13.22
Granted			397,981						39.10						202,923						16.82
Forfeited			(20,077)						25.87						(12,700)						14.70
Balance June 30,			971,292						$	24.56					478,504						$	14.71

Stock Option Awards

The following table summarizes the Company's stock option activity as of June 30, 2021:

			WillScot Options						Weighted-Average Exercise Price per Share						Converted Mobile Mini Options						Weighted-Average Exercise Price per Share
Balance December 31 , 2020			534,188						$	13.60					2,031,455						$	14.78
Forfeited			—						—						(6,240)						12.19
Exercised			—						—						(373,132)						15.77
Balance June 30, 2021			534,188						$	13.60					1,652,083						$	14.57
Fully vested and exercisable options, June 30, 2021			400,641						$	13.60					1,652,083						$	14.57

The following table summarizes the Company's stock option activity as of June 30, 2020:

			WillScot Options						Weighted-Average Exercise Price per Share
Balance, December 31, 2019			534,188						$	13.60
Balance, June 30, 2020			534,188						$	13.60
Fully vested and exercisable options, December 31, 2019			133,547						$	13.60
Vested			133,547						13.60
Fully vested and exercisable options, June 30, 2020			267,094						$	13.60

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Tabular disclosure of the changes in outstanding nonvested restricted stock shares.

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Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year.

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Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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