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Stock-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2017
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Vested and Unvested Restricted Stock Units Outstanding | The following table summarizes information about vested and unvested restricted stock units outstanding at June 30, 2017:
|  | Six Months Ended |
|  | June 30, 2017 |
|  | Restricted Stock Units Outstanding |  | Weighted Average Grant Date Fair Value |
Balance at beginning of period |  |  | 1,200,848 |  | $ | 19.00 |
Grants |  |  | 97,893 |  |  | 33.88 |
Released and distributed (vested) |  |  | (70,819 | ) |  | 19.00 |
Forfeited/expired |  |  | (1,021 | ) |  | 19.00 |
Balance at end of period |  |  | 1,226,901 |  | $ | 19.67 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + 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)(1) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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