XML 39 R28.htm IDEA: XBRL DOCUMENT v3.10.0.1

Share-Based Compensation (Tables)

9 Months Ended

Jun. 30, 2018

Schedule of Restricted Stock Activity

The restricted stock activity for the nine months ended June 30, 2018 were summarized as follows:

						Weighted-
						Average
		Number				Grant Date
		of Shares				Fair Value
Restricted shares unvested at September 30, 2017			775,753			$	5.22
Granted			—				—
Vested			(199,305	)			4.54
Forfeited			—				—
Restricted shares unvested at June 30, 2018			576,448			$	5.45

Schedule of SARs Activity

The SARs activity for the nine months ended June 30, 2018 were summarized as follows:

						Weighted-
						Average
		Number				Grant Date
		of Shares				Fair Value
SARs unvested at September 30, 2017			1,140,013			$	—
Granted			—				—
Vested			(622,238	)			—
Forfeited			—				—
SARs unvested at June 30, 2018			517,775			$	7.58

Schedule of Phantom Stock Activity

The phantom stock activity for the nine months ended June 30, 2018 were summarized as follows:

						Weighted-
						Average
		Number				Grant Date
		of Shares				Fair Value
Phantom stock unvested at September 30, 2017			—			$	—
Granted			536,538				6.08
Vested			(44,623	)			7.50
Forfeited			—				—
Phantom stock unvested at June 30, 2018			491,915			$	13.55

X

- Definition

Schedule Of Phantom Shares Activity Table [Text Block]

+ References

No definition available.

+ Details

Name:	mesa_ScheduleOfPhantomSharesActivityTableTextBlock
Namespace Prefix:	mesa_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock appreciation rights awards that were outstanding at the beginning and end of the year, and the number of stock appreciation rights awards that were granted, exercised or converted, forfeited, and expired during the year.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 718
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901

+ Details

Name:	us-gaap_ScheduleOfShareBasedCompensationStockAppreciationRightsAwardActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year.

+ References

No definition available.

+ Details

Name:	us-gaap_ScheduleOfSharebasedCompensationRestrictedStockAndRestrictedStockUnitsActivityTableTextBlock
Namespace Prefix:	us-gaap_
Data Type:	nonnum:textBlockItemType
Balance Type:	na
Period Type:	duration