Shareholders' Equity (Tables)

6 Months Ended

Jun. 30, 2014

Stockholders' Equity Note [Abstract]

Schedule of Compensation Cost for Share-based Payment Arrangements, Allocation of Share-based Compensation Costs by Plan [Table Text Block]

The Company recognized stock-based compensation expense in its Consolidated Financial Statements in the three and six months ended June 30, 2014 and 2013, respectively, as follows:

	Three Months Ended June 30,						Six Months Ended June 30,
	2014			2013			2014			2013
Stock-based compensation expense	$	2,872		$	10,607		$	5,695		$	15,900
Less: Deferred tax benefit	(939		)	(3,867		)	(1,950		)	(5,783		)
Stock-based compensation expense, net of tax	$	1,933		$	6,740		$	3,745		$	10,117