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Equity Incentive Plans (Tables) | 3 Months Ended
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Mar. 31, 2019
Disclosure of Compensation Related Costs, Share-based Payments [Abstract] |
Schedule of Nonvested Restricted Stock Units Activity | The following table summarizes activity related to our RSUs under the Equity Incentive Plan for the three months ended March 31, 2019:
| Number Outstanding |  | Weighted Average Grant Date Fair Value |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands) (1)
Unvested as of January 1, 2019 | 1,475,682 |  |  | $ | 34.94 |  |  |  |  |
Granted | 832,974 |  |  | $ | 27.69 |  |  |  |  |
Vested | (343,552 | ) |  | $ | 33.47 |  |  |  |  |
Forfeited / Canceled | (15,499 | ) |  | $ | 34.01 |  |  |  |  |
Unvested as of March 31, 2019 | 1,949,605 |  |  | $ | 32.11 |  |  |  |  |
Expected to vest after March 31, 2019 | 1,737,948 |  |  | $ | 32.12 |  |  | 3.1 |  | $ | 49,323 |
Schedule of Nonvested Performance-based Units Activity | The following table summarizes activity related to our PSUs under the Equity Incentive Plan for the three months ended March 31, 2019:
| Number Outstanding |  | Weighted Average Grant Date Fair Value |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands) (1)
Unvested as of January 1, 2019 | — |  |  | $ | — |  |  |  |  |
Granted (2) | 116,094 |  |  | $ | 27.69 |  |  |  |  |
Unvested as of March 31, 2019 | 116,094 |  |  | $ | 27.69 |  |  |  |  |
Expected to vest after March 31, 2019 | 116,094 |  |  | $ | 27.69 |  |  | 2.8 |  | $ | 3,295 |
Schedule of Share-based Compensation, Stock Options, Activity | The following table summarizes activity related to our stock options under the Equity Incentive Plan for the three months ended March 31, 2019:
| Number Outstanding |  | Weighted Average Exercise Price |  | Weighted Average Remaining Contractual Term (in years) |  | Aggregate Intrinsic Value (in thousands) (1)
Balance as of January 1, 2019 | 1,051,494 |  |  | $ | 10.15 |  |  |  |  |
Exercised | (182,541 | ) |  | $ | 7.31 |  |  |  |  | $ | 3,274 |
Canceled | (6,528 | ) |  | $ | 15.21 |  |  |  |  |
Balance as of March 31, 2019 | 862,425 |  |  | $ | 10.72 |  |  | 0.7 |  | $ | 15,362 |
Exercisable as of March 31, 2019 | 862,425 |  |  | $ | 10.72 |  |  | 0.7 |  | $ | 15,362 |

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- Definition Tabular disclosure of the changes in outstanding nonvested restricted stock 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) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + 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 (d) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=96867065&loc=d3e5070-113901 + Details
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