Earnings Per Share and Earnings Per Unit (Tables)

3 Months Ended

Mar. 31, 2018

Earnings Per Share [Abstract]

Computation of Basic and Diluted Earnings Per Common Share/Unit

The following table sets forth the computation of basic and diluted earnings per common share utilizing the two-class method.

Earnings Per Share

(in thousands except per share data)	Three Months Ended Mar. 31, 2018		Three Months Ended Mar. 31, 2017
Numerator:
Net income attributable to common shareholders	$	33,889	$	20,429
Denominator:
Denominator for basic earnings per share – weighted    average shares		46,452		46,305
Effect of Dilutive Securities:
Stock options and non-vested stock		85		114
Denominator for diluted earnings per share – adjusted    weighted average shares and assumed conversion		46,537		46,419
Basic earnings per common share attributable to    common shareholders	$	0.73	$	0.44
Diluted earnings per common share attributable to    common shareholders	$	0.73	$	0.44

Earnings Per Unit

The following table sets forth the computation of basic and diluted earnings per common unit utilizing the two-class method.

(in thousands except per unit data)	Three Months Ended Mar. 31, 2018		Three Months Ended Mar. 31, 2017
Numerator:
Net income attributable to common unitholders	$	33,889	$	20,429
Denominator:
Denominator for basic earnings per unit – weighted    average units		46,452		46,305
Effect of Dilutive Securities:
Stock options and non-vested stock		85		114
Denominator for diluted earnings per unit – adjusted    weighted average units and assumed conversion		46,537		46,419
Basic earnings per common unit attributable to    common unitholders	$	0.73	$	0.44
Diluted earnings per common unit attributable to    common unitholders	$	0.73	$	0.44