Earnings per Common Share (Tables)

6 Months Ended

Jun. 30, 2017

Earnings Per Share [Abstract]

Schedule of computation of basic and diluted earnings per common share

The computation of basic and diluted earnings per common share is as follows (in thousands, except share and per share data):

	For the three months ended June 30,						For the six months ended June 30,
	2017			2016			2017			2016
Numerator:
Net income attributable to common shareholders	$	42,246		$	58,447		$	64,004		$	83,744
Less: Dividends paid on unvested restricted shares	(273		)	(274		)	(555		)	(687		)
Less: Undistributed earnings attributable to unvested restricted shares	(7		)	(117		)	—			(10		)
Net income attributable to common shareholders excluding amounts attributable to unvested restricted shares	$	41,966		$	58,056		$	63,449		$	83,047
Denominator:
Weighted-average number of common shares - basic	123,785,735			123,544,034			123,760,096			123,641,928
Unvested restricted shares	86,027			373,039			96,292			387,755
Unvested performance units	—			25,773			—			22,273
Weighted-average number of common shares - diluted	123,871,762			123,942,846			123,856,388			124,051,956
Net income per share attributable to common shareholders - basic	$	0.34		$	0.47		$	0.51		$	0.67
Net income per share attributable to common shareholders - diluted	$	0.34		$	0.47		$	0.51		$	0.67