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Stock-Based Awards (Tables)

3 Months Ended

Mar. 31, 2018

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Summary of Unrecognized Stock-Based Compensation Expense and Average Remaining Vesting Period

A summary of unrecognized stock-based compensation expense and average remaining vesting period is as follows:

		March 31, 2018
		Unrecognized Stock- Based Compensation				Average Remaining Vesting Period
Employees and directors restricted stock awards		$	21,638				1.91

Summary of Stock Options, Restricted Stock and Restricted Stock Unit Activity

A summary of stock options, restricted stock and restricted stock unit activity for the three months ended March 31, 2018 is as follows:

		Stock Options				Restricted Stock Awards				Restricted Stock Units
Balance at January 1, 2018			1,158,828				1,816,666				5,678
Granted			—				730,028				7,152
Exercised/vested			(173,291	)			(164,028	)			(734	)
Forfeitures			—				(63,609	)			—
Balance at March 31, 2018			985,537				2,319,057				12,096

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- Definition

Tabular disclosure for share-based compensation 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.

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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

Reference 2: 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 3: 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

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Schedule Of Unrecognized Stock Based Compensation Expenses And Average Remaining Vesting Period Table [Text Block]

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