Employee Benefit Plans (Tables)

12 Months Ended

Dec. 31, 2013

Employee Benefit Plan [Abstract]

Schedule of Share-based Compensation, Stock Options, Activity

	Options		Weighted- Average Exercise Price Per Share		Weighted- Average Remaining Contractual Terms		Aggregate Intrinsic Value
					(in years)		(in thousands)
Outstanding on December 31, 2012		1,192,158	$	14.30
Granted		369,137		27.48
Exercised		(108,122)		12.80
Forfeited/Cancelled		-		-
Outstanding on December 31, 2013		1,453,173	$	17.76		7.8	$	15,970
Exercisable on December 31, 2013		705,814	$	13.45		6.9	$	10,624

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions

	Year Ended December 31,
	2013		2012		2011
Black-Scholes option pricing model assumptions:
Risk free interest rate	1.4	%	1.0	%	1.9	%
Expected life (years)	6.0		6.0		6.0
Expected volatility	56	%	56	%	53	%
Dividend yield	-		-		-

Schedule of Nonvested Share Activity

	Shares		Weighted- Average Grant- Date Fair Value
Non-vested share awards outstanding at December 31, 2012		326,952	$	15.98
Granted		264,383		26.60
Vested		(145,309)		16.77
Forfeited		(1,531)		32.67
Non-vested share awards outstanding at December 31, 2013		444,495	$	21.98

Schedule of Share-Based Compensation Expense and Related Tax Benefits

		Year Ended December 31,
		2013		2012		2011
Compensation Expense:
Stock Options	$	3,426	$	2,621	$	1,497
Non-vested share awards		3,918		2,096		1,012
Deferred Income Tax Benefit		2,704		1,726		936