Stock-Based Compensation (Tables)

6 Months Ended

Jun. 30, 2015

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Amount of Stock-Based Compensation Costs and Related Deferred Income Tax Benefit Recognized in the Financial Statements

The following table summarizes stock-based compensation costs and related deferred income tax benefit recognized in the financial statements:

	Three Months Ended June 30,						Six Months Ended June 30,
	2015			2014			2015			2014
	(in thousands)
Stock option costs	$	12		$	523		$	665		$	1,979
Restricted stock costs	3,597			2,579			8,601			6,303
Performance share costs	3,800			1,089			5,060			1,940
Total stock-based compensation costs	7,409			4,191			14,326			10,222
Less amount capitalized into qualifying real estate projects	(1,422		)	(555		)	(3,084		)	(2,620		)
Amount charged to operating expenses	5,987			3,636			11,242			7,602
Depreciation expense on capitalized stock-based compensation	226			189			452			447
Total stock-based compensation expense	$	6,213		$	3,825		$	11,694		$	8,049
Deferred income tax benefit	$	2,438		$	1,455		$	4,511		$	3,021