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Stock-Based Compensation - Summary of Deferred Compensation Expense Recognition (Details) - Restricted Stock Units (RSUs) | Dec. 31, 2015 USD ($)
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Expense recognition of deferred compensation |
2016 | $ 5,243,958
2017 | 4,647,054
2018 | 3,943,960
2019 | 3,039,242
2020 | 1,309,111
Thereafter | 1,111,459
Total | $ 19,294,784

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- Definition Unrecognized cost of unvested share-based compensation awards. + 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 (i) -URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901 + Details
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