Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2019

Earnings Per Share [Abstract]

Schedule of calculation of pro forma basic and diluted earnings per share

The calculation of basic and diluted earnings per ordinary share is as follows (dollars in millions, except per share data):

	Three Months Ended June 30,				Six Months Ended June 30,
	2019		2018		2019			2018
Numerator:
Net income attributable to controlling interests	$	28.0	$	2.1	$	80.7		$	59.4
Less: Total income available to participating unvested securities(1)	—		—		(0.1		)	(0.2		)
Total net income attributable to ordinary shares	$	28.0	$	2.1	$	80.6		$	59.2
Denominator:
Weighted-average ordinary shares outstanding—basic	91,457,301		108,445,541		94,550,527			108,918,328
Potential ordinary shares:
Restricted stock units	38,332		175,580		118,948			185,919
Weighted-average ordinary shares outstanding—diluted	91,495,633		108,621,121		94,669,475			109,104,247
Earnings per ordinary share attributable to controlling interests:
Basic	$	0.31	$	0.02	$	0.85		$	0.54
Diluted	$	0.31	$	0.02	$	0.85		$	0.54

(1)

Income available to participating unvested securities includes dividends paid on unvested restricted shares and their proportionate share of undistributed earnings.