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Equity-Based Compensation (Details 2) (USD $) In Thousands, except Share data, unless otherwise specified | 3 Months Ended | 9 Months Ended |  | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 0 Months Ended | 3 Months Ended | 9 Months Ended | 3 Months Ended | 9 Months Ended | 0 Months Ended |
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Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 | Sep. 30, 2013 | Sep. 30, 2014 Restricted Stock Units and Restricted Stock Awards 2012 Plan | Sep. 30, 2014 Restricted stock | Sep. 30, 2013 Restricted stock | Sep. 30, 2014 Restricted stock | Sep. 30, 2014 Restricted stock units | Sep. 30, 2013 Restricted stock units | Sep. 30, 2014 Restricted stock units | Sep. 30, 2013 Restricted stock units | Mar. 14, 2014 Restricted stock units Virtual Moment, LLC | Sep. 30, 2014 Restricted stock units Virtual Moment, LLC | Sep. 30, 2013 Restricted stock units Virtual Moment, LLC | Sep. 30, 2014 Restricted stock units Virtual Moment, LLC | Sep. 30, 2013 Restricted stock units Virtual Moment, LLC | Sep. 30, 2014 Restricted stock units 2012 Plan | Sep. 30, 2014 Employee stock purchase plan 2012 ESPP | Sep. 30, 2013 Employee stock purchase plan 2012 ESPP | Sep. 30, 2014 Employee stock purchase plan 2012 ESPP | Sep. 30, 2013 Employee stock purchase plan 2012 ESPP | Apr. 24, 2014 Chief Executive Officer Restricted stock units | Apr. 24, 2014 Chief Executive Officer Restricted stock units
Plan Options |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested balance at the beginning of the period (in shares) |  |  |  |  |  |  |  |  |  |  | 10,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Units granted (in shares) |  |  |  |  |  |  |  |  |  |  | 640,975 |  |  |  |  |  |  |  |  |  |  |  | 100,000 |
Units vested (in shares) |  |  |  |  |  |  |  |  |  |  | (3,125) |  |  |  |  |  |  |  |  |  |  |  |  |
Units cancelled or forfeited (in shares) |  |  |  |  |  |  |  |  |  |  | (18,850) |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested balance at the end of the period (in shares) |  |  |  |  |  |  |  |  | 629,000 |  | 629,000 |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted Average Fair Value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested balance at the beginning of the period (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 47.17 |  |  |  |  |  |  |  |  |  |  |  |  |
Units granted (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 83.19 |  |  |  |  |  |  |  |  |  |  |  |  |
Units vested (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 47.17 |  |  |  |  |  |  |  |  |  |  |  |  |
Units cancelled or forfeited (in dollars per share) |  |  |  |  |  |  |  |  |  |  | $ 81.36 |  |  |  |  |  |  |  |  |  |  |  |  |
Non-vested balance at the end of the period (in dollars per share) |  |  |  |  |  |  |  |  | $ 82.85 |  | $ 82.85 |  |  |  |  |  |  |  |  |  |  |  |  |
Non-cash stock-based compensation expense net of estimated forfeitures recognized in connection with one-time acceleration charge |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 225 | $ 138 | $ 598 | $ 428 |  |
Recognized compensation charge | 6,334 | 1,852 | 15,728 | 4,422 |  | 259 | 259 | 777 | 3,234 | 30 | 7,518 | 48 |  | 419 | 0 | 910 | 0 |  |  |  |  |  |  |
Vesting period of granted award |  |  |  |  |  |  |  |  |  |  |  |  | 2 years |  |  |  |  | 3 years |  |  | 6 months |  |  |
Consideration period for awards granted |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 90 days |
Closing price of the common stock equals or exceeds for 90 consecutive calendar days |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 161.88 |
Service period for amortization of awards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 6 years |
Total fair value of the grant |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,870
Reversal of charge upon the completion of service period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0 |
Unrecognized compensation charge |  |  |  |  | $ 47,300 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of shares issued under ESPP |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 112,030 |  |  |  |  |

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- Definition The weighted average fair value of nonvested awards on equity-based plans excluding option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, revenue or profit achievement stock award plan) for which the employer is contingently obligated to issue equity instruments or transfer assets to an employee who has not yet satisfied service or performance criteria necessary to gain title to proceeds from the sale of the award or underlying shares or units. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2)(i)-(ii) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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