Earnings per Share (Tables)

3 Months Ended

Mar. 31, 2015

Earnings Per Share [Abstract]

Schedule of Computation of Basic and Diluted Earnings Per Share

The computation of basic and diluted EPS is as follows:

	Three Months Ended March 31,
	2015			2014
($ in thousands, except per share amounts)
Net Income	$	19,725		$	21,767
Noncontrolling interests		(383	)		171
Net Income Attributable to Common Stockholders	$	19,342		$	21,938
Shares (in thousands):
Basic: Weighted-average number of shares outstanding		8,964			9,116
Plus: Incremental shares from assumed conversion of dilutive instruments		187			245
Diluted: Weighted-average number of shares outstanding		9,151			9,361
Earnings per share - basic	$	2.16		$	2.41
Earnings per share - diluted	$	2.11		$	2.34