Earnings Per Share (Tables)

6 Months Ended

Jun. 30, 2013

Earnings Per Share [Abstract]

Reconciliation of Numerators and Denominators of Basic and Diluted Earnings Per Share Computations

The following is a reconciliation of the numerators and denominators of the basic and diluted earnings per share computations shown in the consolidated statements of comprehensive income (dollars in thousands):

	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2013			2012			2013			2012
Basic earnings per share
Net income	$	143,232		$	428		$	170,981		$	5,563
Less: net income allocated to unvested participating securities		(2,351	)		(11	)		(2,831	)		(143	)
Net income available to common stockholders (numerator)		140,881			417			168,150			5,420
Weighted-average common shares outstanding (denominator)		36,925			28,916			36,902			28,857
Basic earnings per share	$	3.82		$	0.01		$	4.56		$	0.19
Diluted earnings per share
Net income	$	143,232		$	428		$	170,981		$	5,563
Less: net income allocated to unvested participating securities		(2,310	)		(11	)		(2,778	)		(142	)
Net income available to common stockholders (numerator)		140,922			417			168,203			5,421
Weighted-average common shares outstanding		36,925			28,916			36,902			28,857
Add: effect of dilutive stock options and convertible notes		660			169			711			158
Diluted weighted-average common shares outstanding (denominator)		37,585			29,085			37,613			29,015
Diluted earnings per share	$	3.75		$	0.01		$	4.47		$	0.19