Equity-Based Compensation Options Exercisable (Details) (USD $)	12 Months Ended
	Dec. 31, 2013
2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares)	376,472
Outstanding, weighted-average exercise price	$ 15.10
Weighted average remaining contractual life	12 years 0 months
Aggregate intrinsic value	$ 1,598,316
Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares)	2,408,223
Outstanding, weighted-average exercise price	$ 4.61
Weighted average remaining contractual life	4 years 7 months
Aggregate intrinsic value	34,254,475
Range of Exercise Prices, $12.16 – $13.75 [Member] | 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares)	263,750
Outstanding, weighted-average exercise price	$ 13.27
Weighted average remaining contractual life	11 years 8 months
Aggregate intrinsic value	1,466,612
Exercise price range, lower limit	$ 12.16
Exercise price range, upper limit	$ 13.75
Range of Exercise Prices, $15.04 – $15.90 [Member] | 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares)	37,722
Outstanding, weighted-average exercise price	$ 15.34
Weighted average remaining contractual life	10 years 1 month
Aggregate intrinsic value	131,704
Exercise price range, lower limit	$ 15.04
Exercise price range, upper limit	$ 15.90
Range of Exercise Prices, $20.68 - $21.41 [Member] | 2010 Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares)	75,000
Outstanding, weighted-average exercise price	$ 21.41
Weighted average remaining contractual life	14 years 5 months
Aggregate intrinsic value	0
Exercise price range, lower limit	$ 20.68
Exercise price range, upper limit	$ 21.41
Range of Exercise Prices, $2.35 – $3.26 [Member] | Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares)	502,500
Outstanding, weighted-average exercise price	$ 3.15
Weighted average remaining contractual life	4 years 2 months
Aggregate intrinsic value	7,878,875
Exercise price range, lower limit	$ 2.35
Exercise price range, upper limit	$ 3.26
Range of Exercise Prices, $3.48 – $4.90 [Member] | Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares)	1,258,597
Outstanding, weighted-average exercise price	$ 4.47
Weighted average remaining contractual life	4 years 1 month
Aggregate intrinsic value	18,074,077
Exercise price range, lower limit	$ 3.48
Exercise price range, upper limit	$ 4.90
Range of Exercise Prices, $5.25 – $7.18 [Member] | Equity Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Options exercisable (in shares)	647,126
Outstanding, weighted-average exercise price	$ 6.00
Weighted average remaining contractual life	5 years 11 months
Aggregate intrinsic value	$ 8,301,523
Exercise price range, lower limit	$ 5.25
Exercise price range, upper limit	$ 7.18