XML 44 R30.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Capital Transactions (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2023
Schedule of stock option activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | 2023 | ​ | 2022 | ​ | 2021 |
​ | ​ | ​ | ​ | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ |
​ | ​ | ​ | ​ | Weighted | ​ | Average | ​ | ​ | Aggregate | ​ | ​ | ​ | Weighted | ​ | ​ | ​ | Weighted |
​ | ​ | ​ | ​ | Average | ​ | Remaining | ​ | ​ | Intrinsic | ​ | ​ | ​ | Average | ​ | ​ | ​ | Average |
​ | ​ | Number of | ​ | Exercise | ​ | Contractual | ​ | ​ | Value | ​ | Number of | ​ | Exercise | ​ | Number of | ​ | Exercise |
​ | ​ | Options | ​ | Price | ​ | Term | ​ | ​ | ($000) | ​ | Options | ​ | Price | ​ | Options | ​ | Price |
Outstanding at beginning of year |  | 6,816 | ​ | $ | 14.78 |  | 0.1 | years | ​ | $ | 11.8 |  | 16,633 |  | $ | 14.62 |  | 57,653 |  | $ | 14.74 | ​
Granted |  | — | ​ |  | — | ​ | ​ | ​ | ​ | ​ | ​ |  | — | ​ |  | — |  | — | ​ |  | — | ​
Exercised |  | (3,848) | ​ |  | 14.78 | ​ | ​ | ​ | ​ | ​ | ​ |  | (9,817) | ​ |  | 14.52 |  | (41,020) | ​ |  | 14.78 | ​
Cancelled |  | (2,968) | ​ |  | 14.78 | ​ | ​ | ​ | ​ | ​ | ​ |  | — | ​ |  | — |  | — | ​ |  | — | ​
Outstanding at end of year |  | — | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | ​ | ​ | 6,816 | ​ |  | 14.78 |  | 16,633 | ​ |  | 14.62 | ​
Exercisable at December 31, 2023 |  | — | ​ | $ | — | ​ | — | years | ​ | $ | — | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Exercisable at December 31, 2022 |  | 6,816 | ​ | $ | 14.78 | ​ | 0.1 | years | ​ | $ | 11.8 | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Schedule of restricted stock activity | ​
​ | ​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | Weighted-Average |
​ | ​ | ​ | ​ | ​ | Grant-Date Fair |
​ | ​ | Number of RSUs | ​ | ​ | Value |
Non-vested RSUs outstanding at December 31, 2020 |  | 237,977 | ​ | $ | 54.15 | ​
Granted |  | 44,770 | ​ |  | 44.87 | ​
Vested |  | (69,184) | ​ |  | 53.41 | ​
Cancelled |  | (13,390) | ​ |  | 52.28 | ​
Non-vested RSUs outstanding at December 31, 2021 |  | 200,173 | ​ | $ | 52.45 | ​
Granted |  | 66,680 | ​ |  | 32.86 | ​
Vested |  | (86,534) | ​ |  | 48.69 | ​
Cancelled |  | (20,297) | ​ |  | 44.91 | ​
Non-vested RSUs outstanding at December 31, 2022 |  | 160,022 | ​ | $ | 47.28 | ​
Granted |  | 127,348 | ​ |  | 18.77 | ​
Vested |  | (65,283) | ​ |  | 61.45 | ​
Cancelled |  | (19,175) | ​ |  | 28.11 | ​
Non-vested RSUs outstanding at December 31, 2023 |  | 202,912 | ​ | $ | 26.64 | ​
Schedule of warrant issued under the payroll support programs and secured loan facility | ​
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Number of Warrants | ​ | Exercise Price | ​ | Weighted Average Grant-Date Fair Value
PSP1 | ​ | 370,720 | ​ | $ | 28.38 | ​ | $ | 13.57
Secured Loan | ​ | 211,416 | ​ | $ | 28.38 | ​ | $ | 15.22
PSP2 | ​ | 124,773 | ​ | $ | 40.41 | ​ | $ | 32.52
PSP3 | ​ | 78,317 | ​ | $ | 57.47 | ​ | $ | 22.31
Total | ​ | 785,226 | ​ | ​ | ​ | ​ | ​ | ​
​
Performance Share Units (PSUs) |
Schedule of non-vested stock options | ​
​ | ​ | ​ | ​ | ​ | ​
​ |  | ​ |  | ​ | Weighted-Average
​ | ​ | ​ | ​ | ​ | Grant-Date Fair
​ | ​ | Number of PSUs | ​ | ​ | Value
Non-vested PSUs outstanding at December 31, 2020 |  | 196,609 | ​ | $ | 54.17
Granted |  | 157,210 | ​ |  | 44.87
PSUs forfeited from the 2018 grant due to performance | ​ | (11,392) | ​ | ​ | 53.41
Vested |  | (45,644) | ​ |  | 53.41
Cancelled |  | (3,991) | ​ |  | 53.30
Non-vested PSUs outstanding at December 31, 2021 |  | 292,792 | ​ | $ | 49.39
Granted |  | 225,345 | ​ |  | 32.73
PSUs forfeited from the 2019 grant due to performance | ​ | (45,695) | ​ | ​ | 48.87
Vested |  | (30,480) | ​ |  | 48.87
Cancelled |  | (13,032) | ​ |  | 41.81
Non-vested PSUs outstanding at December 31, 2022 |  | 428,930 | ​ | $ | 40.96
Granted |  | 391,810 | ​ |  | 18.65
PSUs forfeited from the 2020 grant due to performance | ​ | (35,328) | ​ | ​ | 61.45
Vested |  | (23,528) | ​ |  | 61.45
Cancelled |  | (2,154) | ​ |  | 48.07
Non-vested PSUs outstanding at December 31, 2023 |  | 759,730 | ​ | $ | 27.85

X
- Definition The tabular disclosure of warrants issued under the payroll support programs and secured loan facility. + References No definition available. + Details
Name: | skyw_ScheduleOfWarrantsIssuedUnderPayrollSupportProgramsAndSecuredLoanFacilityTableTextBlock
Namespace Prefix: | skyw_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the changes in outstanding nonvested shares. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfNonvestedShareActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (d) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (e) -SubTopic 10 -Topic 718 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480429/718-10-50-2 + Details
Name: | us-gaap_ScheduleOfShareBasedCompensationStockOptionsActivityTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_AwardTypeAxis=us-gaap_PerformanceSharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |