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Pay vs Performance Disclosure - USD ($)
 12 Months Ended
Aug. 31, 2025
Aug. 31, 2024
Aug. 31, 2023
Aug. 31, 2022
Aug. 31, 2021
Pay vs Performance Disclosure          
Pay vs Performance Disclosure, Table
Pay Versus Performance Table
As required by Section 953(a) of the Dodd-Frank Act, and Item 402(v) of Regulation
S-K,
we are providing certain information, including information about the relationship between executive compensation actually paid to certain individuals by the Company and certain financial performance of the Company. For further information concerning the Company’s
pay-for-performance
philosophy and how the Company aligns executive compensation with the Company’s performance, refer to the Compensation Discussion and Analysis section of this Proxy Statement.
 
 
 
    
 
      
 
      
 
      
 
    
Average
Summary
Compensation
Table Total
for
Non-PEO

NEOs
(5)
(d)
    
Average
Compensation
Actually Paid
to
Non-PEO

NEOs
(6)
(e)
    
Value of Initial Fixed $100
Investment Based On:
      
 
      
 
  
Fiscal Year
(a)
  
Summary
Compensation
Table Total
for First
PEO
(1)
(b)
    
Summary
Compensation
table Total
for Second
PEO
(2)
(b)
    
Compensation
Actually Paid
to First PEO
(3)
(c)
    
Compensation
Actually Paid
to Second
PEO
(4)
(c)
    
Total
Shareholder
Return
(7)
(f)
    
Peer Group
Total
Shareholder
Return
(8)
(g)
    
Net Income
($MM)
(9)
(h)
    
Company
EBITDA
($MM)
(10)
 
(i) 
  
2025
  
 
N/A
 
  
$
7,706,230
 
  
 
N/A
 
  
$
8,376,353
 
  
$
3,192,562
 
  
$
3,379,388
 
  
 
$197.35
 
  
 
$173.39
 
  
 
$204.1
 
  
$
512.3
 
2024
  
 
N/A
 
  
$
6,500,650
 
  
 
N/A
 
  
$
9,514,546
 
  
$
2,509,768
 
  
$
3,330,451
 
  
 
$200.30
 
  
 
$167.51
 
  
 
$160.1
 
  
$
451.1
 
2023
  
 
N/A
 
  
$
5,639,481
 
  
 
N/A
 
  
$
8,638,530
 
  
$
2,350,565
 
  
$
3,229,980
 
  
 
$171.31
 
  
 
$142.79
 
  
 
$ 62.5
 
  
$
340.3
 
2022
  
$
6,633,675
 
  
 
N/A
 
  
$
2,293,623
 
  
 
N/A
 
  
$
3,058,323
 
  
$
1,618,067
 
  
 
$111.03
 
  
 
$135.31
 
  
 
$ 46.9
 
  
$
231.3
 
2021
  
$
5,580,229
 
  
 
N/A
 
  
$
9,401,783
 
  
 
N/A
 
  
$
2,487,885
 
  
$
3,769,096
 
  
 
$167.05
 
  
 
$153.97
 
  
 
$ 32.4
 
  
$
150.3
 
 
(1)
 
This column represents the amount of total compensation reported for William A. Furman (our former Chief Executive Officer and former Executive Chairman) for each corresponding fiscal year in the “Total” column of the Summary Compensation Table in each applicable fiscal year (such total for the applicable executive, “total compensation”). Please refer to the Summary Compensation Table in the Company’s Proxy Statement for the applicable fiscal year.
 
(2)
This column represents the amount of total compensation reported for Lorie L. Tekorius (our Chief Executive Officer and President) for each corresponding fiscal year in the “Total” column of the Summary Compensation Table. Please refer to the Summary Compensation Table in this Proxy Statement
.
 
(3)
 
This column represents the amount of “compensation actually paid” to Mr. Furman, as computed in accordance with Item 402(v) of Regulation
S-K.
 
(4)
 
This column represents the amount of “compensation actually paid” to Ms. Tekorius, as computed in accordance with Item 402(v) of Regulation
S-K.
In accordance with the requirements of Item 402(v) of Regulation
S-K,
the following adjustments were made to Ms. Tekorius’ total compensation for fiscal year 2025 to determine the “compensation actually paid” to Ms. Tekorius in fiscal year 2025:
 
Fiscal Year
   
Reported
Summary
Compensation
Table Total
for Second PEO
(a)
   
Reported
Summary
Compensation
Table Value of
Second PEO
Equity
Awards
(b)
   
Adjusted
Value of
Second PEO
Equity
Awards
(c)
   
Compensation   
Actually Paid   
to Second PEO   
2025
     
$
7,706,230
     
$
(4,535,537
)
     
 
$5,205,660
     
$
8,376,353
 
 
(a)
 
This column represents the amount of total compensation reported for Ms. Tekorius for fiscal year 2025 in the “Total” column of the Summary Compensation Table. Please refer to the Summary Compensation Table in this Proxy Statement.
 
 
(b)
 
This column represents the aggregate grant date fair value of equity awards reported in the “Stock Awards” column in the Summary Compensation Table for fiscal year 2025. Please refer to the Summary Compensation Table in this Proxy Statement. The amount in this column for fiscal year 2025 is replaced with the corresponding amount reported under the Adjusted Value of Second PEO Equity Awards column in order to arrive at compensation actually paid for fiscal year 2025.
 
 
(c)
 
This column represents an adjustment to the amounts in the “Stock Awards” column in the Summary Compensation Table for fiscal year 2025. For fiscal year 2025, the adjusted amount replaces the “Stock Awards” column in the Summary Compensation Table for Ms. Tekorius to arrive at “compensation actually paid” to Ms. Tekorius for fiscal year 2025. The adjusted amount is determined by adding (or subtracting, as applicable) the following for fiscal year 2025: (i) the fiscal
year-end
fair value of any equity awards granted in fiscal year 2025 that are outstanding and unvested as of the end of fiscal year 2025; (ii) the amount of change as of the end of fiscal year 2025 (from the end of the prior fiscal year) in the fair value of any awards granted in prior fiscal years that are outstanding and unvested as of the end of fiscal year 2025; (iii) for awards that are granted and vest in fiscal year 2025, the fair value as of the vesting date; (iv) for awards granted in prior fiscal years that vest in fiscal year 2025, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in the fair value; (v) for awards granted in prior fiscal years that are determined to fail to meet the applicable vesting conditions during fiscal year 2025, a deduction for the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock awards in fiscal year 2025 prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for fiscal year 2025. The amounts added or subtracted to determine the adjusted amount are as follows:
 
Fiscal Year
  
Fiscal Year End
Fair Value of Equity
Awards Granted
in the Fiscal Year
  
Fiscal Year over
Fiscal Year Change in
Fair Value of Outstanding
and Unvested Equity Awards
at FYE Granted in
Prior Fiscal Years
  
Fair Value as of Vesting
Date of Equity Awards
Granted and Vested
in the Fiscal Year
  
Change in Fair Value
(from Prior Fiscal Year
End)
of Equity Awards
Granted in Prior Fiscal
Years that Vested
in the Fiscal Year
  
Fair Value at the End
of the Prior Fiscal Year
of Equity Awards that
Failed to Meet
Vesting Conditions
in the Fiscal Year
  
Value of Dividends or
other Earnings Paid on
Stock Awards not Otherwise
Reflected in Fair Value or
Total Compensation in the
Summary Compensation Table
for the Fiscal Year
  
Adjusted Value   
of Equity Awards   
2025
    
$
3,954,013
    
 
$885,598
    
$
0
    
$
236,210
    
$
(25,368
)
    
$
155,207
    
 
$5,205,660
 
 
The fair value or change in fair value, as applicable, of stock awards was determined by reference to (x) for RSU awards, the closing price of our common stock on the applicable measurement date, (y) for performance-based RSUs (excluding market-conditioned (relative
TSR-based)
performance-based RSUs), the closing price of our common stock on the applicable measurement date multiplied by the probability of achievement as of such date and (z) for market-conditioned performance-based RSUs, a Monte Carlo simulation with reference to the risk free rate, dividend yield and volatility assumptions as of the applicable measurement date.
 
 
   
(5)
 
This column represents the average of the amounts reported for the Company’s NEOs as a group (excluding the PEO for the applicable fiscal year) in the “Total” column of the Summary Compensation Table in each applicable fiscal year. Please refer to the Summary Compensation Table in the Company’s Proxy Statement for the applicable fiscal year. The names of each of the NEOs included for purposes of calculating the average amounts in each applicable fiscal year are as follows: (i) for fiscal year 2025, Michael J. Donfris, Brian J. Comstock, William Krueger and William Glenn, (ii) for fiscal year 2024, Michael J. Donfris, Adrian J. Downes, Brian J. Comstock, William Krueger and William Glenn; (iii) for fiscal year 2023, Adrian J. Downes, Brian J. Comstock, William Krueger and Martin R. Baker; (iv) for fiscal year 2022, Lorie L. Tekorius, Alejandro Centurion, Brian J. Comstock and Adrian J. Downes; and (v) for fiscal year 2021, Lorie L. Tekorius, Mark J. Rittenbaum, Alejandro Centurion, Brian J. Comstock and Adrian J. Downes.
 
(6)
 
This column represents the average amount of “compensation actually paid” to the NEOs as a group (excluding the PEO for the applicable fiscal year), as computed in accordance with Item 402(v) of Regulation
S-K.
In accordance with the requirements of Item 402(v) of Regulation
S-K,
the following adjustments were made to average total compensation for the NEOs as a group (excluding Ms. Tekorius) for fiscal year 2025 to determine the “compensation actually paid” in fiscal year 2025, using the same adjustment methodology described above in Note 4(c):
 
Fiscal Year
   
Average Reported
Summary Compensation
Table Total for
Non-PEO NEOs
(a)
  
Average Reported
Summary Compensation
Table Value of
Non-PEO

NEO Equity Awards
(b)
  
Average Non-
PEO NEO
Adjusted Value of
Equity Awards
(c)
  
Average  
Compensation  
Actually Paid to  
Non-PEO NEOs  
2025
     
$
3,192,562
     
$
(1,573,285
)
     
$
1,760,111
     
$
3,379,388
 
 
(a)
 
This column represents the average of the amounts reported for the Company’s NEOs as a group (excluding Ms. Tekorius) in the “Total” column of the Summary Compensation Table in fiscal year 2025. Please refer to the Summary Compensation Table in this Proxy Statement.
 
 
(b)
 
This column represents the average of the total amounts reported for the NEOs as a group (excluding Ms. Tekorius) in the “Stock Awards” column in the Summary Compensation Table in fiscal year 2025. Please refer to the Executive Compensation Tables section of this Proxy Statement. The amount in this column is replaced with the amount reported under the Average
Non-PEO
NEO Adjusted Value of Equity Awards column in order to arrive at compensation actually paid for fiscal year 2025.
 
 
(c)
 
This column represents an adjustment to the average of the amounts reported for the NEOs as a group (excluding Ms. Tekorius) in the “Stock Awards” column in the Summary Compensation Table in fiscal year 2025 determined using the same methodology described above in Note 4(c). For fiscal year 2025, the adjusted amount replaces the “Stock Awards” column in the Summary Compensation Table for each NEO (excluding Ms. Tekorius) to arrive at “compensation actually paid” to each NEO (excluding Ms. Tekorius) for fiscal year 2025, which is then averaged to determine the average “compensation actually paid” to the NEOs (excluding Ms. Tekorius) for fiscal year 2025. The amounts added or subtracted to determine the adjusted average amount are as follows:
 
Fiscal Year
  
Average Fiscal Year End
Fair Value of Equity
Awards Granted
in the Fiscal Year
  
Average Fiscal Year
over Fiscal Year Change in
Fair Value of Outstanding
and Unvested Equity Awards
at FYE Granted in
Prior Fiscal Years
  
Average Fair Value as of
Vesting Date of Equity
Awards Granted in the
Fiscal Year and Vested
in the Fiscal Year
  
Average Change in
Fair Value of Equity
Awards Granted in
Prior Fiscal Years that
Vested in the Fiscal Year
  
Average Fair Value at the
End of the Prior Fiscal
Year of Equity Awards
that Failed to Meet
Vesting Conditions in
the Fiscal Year
  
Average Value of Dividends or
other Earnings Paid on
Stock Awards not Otherwise
Reflected in Fair Value or
Total Compensation in the
Summary Compensation Table
for the Fiscal Year
  
Adjusted Average   
Value of Equity   
Awards  
2025
    
$
1,371,566
    
$
265,330
    
$
0
    
$
78,717
    
$
(8,823
)
    
$
53,321
    
$
1,760,111
 
 
The fair value or change in fair value, as applicable, of stock awards was determined using the same methodology described above in Note 4(c).
 
(7)
 
Company total shareholder return (“TSR”) is calculated by assuming that a $100 investment was made on the day prior to the first fiscal year reported and reinvesting all dividends until the last day of each reported fiscal year.
 
(8)
 
This column represents cumulative peer group TSR computed in accordance with Note 7. The peer group used for this purpose is the following published industry index: S&P 600 Index.
 
(9)
 
This column represents the amount of net income reflected in the Company’s audited financial statements for the applicable fiscal year.
 
(10)
 
This column represents Company EBITDA. See Compensation Discussion and Analysis above for how we defined Company EBITDA.
       
Company Selected Measure Name Company EBITDA        
Named Executive Officers, Footnote This column represents the average of the amounts reported for the Company’s NEOs as a group (excluding the PEO for the applicable fiscal year) in the “Total” column of the Summary Compensation Table in each applicable fiscal year. Please refer to the Summary Compensation Table in the Company’s Proxy Statement for the applicable fiscal year. The names of each of the NEOs included for purposes of calculating the average amounts in each applicable fiscal year are as follows: (i) for fiscal year 2025, Michael J. Donfris, Brian J. Comstock, William Krueger and William Glenn, (ii) for fiscal year 2024, Michael J. Donfris, Adrian J. Downes, Brian J. Comstock, William Krueger and William Glenn; (iii) for fiscal year 2023, Adrian J. Downes, Brian J. Comstock, William Krueger and Martin R. Baker; (iv) for fiscal year 2022, Lorie L. Tekorius, Alejandro Centurion, Brian J. Comstock and Adrian J. Downes; and (v) for fiscal year 2021, Lorie L. Tekorius, Mark J. Rittenbaum, Alejandro Centurion, Brian J. Comstock and Adrian J. Downes.        
Peer Group Issuers, Footnote
(8)
 
This column represents cumulative peer group TSR computed in accordance with Note 7. The peer group used for this purpose is the following published industry index: S&P 600 Index.
       
Adjustment To PEO Compensation, Footnote
(4)
 
This column represents the amount of “compensation actually paid” to Ms. Tekorius, as computed in accordance with Item 402(v) of Regulation
S-K.
In accordance with the requirements of Item 402(v) of Regulation
S-K,
the following adjustments were made to Ms. Tekorius’ total compensation for fiscal year 2025 to determine the “compensation actually paid” to Ms. Tekorius in fiscal year 2025:
 
Fiscal Year
   
Reported
Summary
Compensation
Table Total
for Second PEO
(a)
   
Reported
Summary
Compensation
Table Value of
Second PEO
Equity
Awards
(b)
   
Adjusted
Value of
Second PEO
Equity
Awards
(c)
   
Compensation   
Actually Paid   
to Second PEO   
2025
     
$
7,706,230
     
$
(4,535,537
)
     
 
$5,205,660
     
$
8,376,353
 
 
(a)
 
This column represents the amount of total compensation reported for Ms. Tekorius for fiscal year 2025 in the “Total” column of the Summary Compensation Table. Please refer to the Summary Compensation Table in this Proxy Statement.
 
 
(b)
 
This column represents the aggregate grant date fair value of equity awards reported in the “Stock Awards” column in the Summary Compensation Table for fiscal year 2025. Please refer to the Summary Compensation Table in this Proxy Statement. The amount in this column for fiscal year 2025 is replaced with the corresponding amount reported under the Adjusted Value of Second PEO Equity Awards column in order to arrive at compensation actually paid for fiscal year 2025.
 
 
(c)
 
This column represents an adjustment to the amounts in the “Stock Awards” column in the Summary Compensation Table for fiscal year 2025. For fiscal year 2025, the adjusted amount replaces the “Stock Awards” column in the Summary Compensation Table for Ms. Tekorius to arrive at “compensation actually paid” to Ms. Tekorius for fiscal year 2025. The adjusted amount is determined by adding (or subtracting, as applicable) the following for fiscal year 2025: (i) the fiscal
year-end
fair value of any equity awards granted in fiscal year 2025 that are outstanding and unvested as of the end of fiscal year 2025; (ii) the amount of change as of the end of fiscal year 2025 (from the end of the prior fiscal year) in the fair value of any awards granted in prior fiscal years that are outstanding and unvested as of the end of fiscal year 2025; (iii) for awards that are granted and vest in fiscal year 2025, the fair value as of the vesting date; (iv) for awards granted in prior fiscal years that vest in fiscal year 2025, the amount equal to the change as of the vesting date (from the end of the prior fiscal year) in the fair value; (v) for awards granted in prior fiscal years that are determined to fail to meet the applicable vesting conditions during fiscal year 2025, a deduction for the amount equal to the fair value at the end of the prior fiscal year; and (vi) the dollar value of any dividends or other earnings paid on stock awards in fiscal year 2025 prior to the vesting date that are not otherwise reflected in the fair value of such award or included in any other component of total compensation for fiscal year 2025. The amounts added or subtracted to determine the adjusted amount are as follows:
 
Fiscal Year
  
Fiscal Year End
Fair Value of Equity
Awards Granted
in the Fiscal Year
  
Fiscal Year over
Fiscal Year Change in
Fair Value of Outstanding
and Unvested Equity Awards
at FYE Granted in
Prior Fiscal Years
  
Fair Value as of Vesting
Date of Equity Awards
Granted and Vested
in the Fiscal Year
  
Change in Fair Value
(from Prior Fiscal Year
End)
of Equity Awards
Granted in Prior Fiscal
Years that Vested
in the Fiscal Year
  
Fair Value at the End
of the Prior Fiscal Year
of Equity Awards that
Failed to Meet
Vesting Conditions
in the Fiscal Year
  
Value of Dividends or
other Earnings Paid on
Stock Awards not Otherwise
Reflected in Fair Value or
Total Compensation in the
Summary Compensation Table
for the Fiscal Year
  
Adjusted Value   
of Equity Awards   
2025
    
$
3,954,013
    
 
$885,598
    
$
0
    
$
236,210
    
$
(25,368
)
    
$
155,207
    
 
$5,205,660
 
 
The fair value or change in fair value, as applicable, of stock awards was determined by reference to (x) for RSU awards, the closing price of our common stock on the applicable measurement date, (y) for performance-based RSUs (excluding market-conditioned (relative
TSR-based)
performance-based RSUs), the closing price of our common stock on the applicable measurement date multiplied by the probability of achievement as of such date and (z) for market-conditioned performance-based RSUs, a Monte Carlo simulation with reference to the risk free rate, dividend yield and volatility assumptions as of the applicable measurement date.
       
Non-PEO NEO Average Total Compensation Amount $ 3,192,562 $ 2,509,768 $ 2,350,565 $ 3,058,323 $ 2,487,885
Non-PEO NEO Average Compensation Actually Paid Amount $ 3,379,388 3,330,451 3,229,980 1,618,067 3,769,096
Adjustment to Non-PEO NEO Compensation Footnote
(6)
 
This column represents the average amount of “compensation actually paid” to the NEOs as a group (excluding the PEO for the applicable fiscal year), as computed in accordance with Item 402(v) of Regulation
S-K.
In accordance with the requirements of Item 402(v) of Regulation
S-K,
the following adjustments were made to average total compensation for the NEOs as a group (excluding Ms. Tekorius) for fiscal year 2025 to determine the “compensation actually paid” in fiscal year 2025, using the same adjustment methodology described above in Note 4(c):
 
Fiscal Year
   
Average Reported
Summary Compensation
Table Total for
Non-PEO NEOs
(a)
  
Average Reported
Summary Compensation
Table Value of
Non-PEO

NEO Equity Awards
(b)
  
Average Non-
PEO NEO
Adjusted Value of
Equity Awards
(c)
  
Average  
Compensation  
Actually Paid to  
Non-PEO NEOs  
2025
     
$
3,192,562
     
$
(1,573,285
)
     
$
1,760,111
     
$
3,379,388
 
 
(a)
 
This column represents the average of the amounts reported for the Company’s NEOs as a group (excluding Ms. Tekorius) in the “Total” column of the Summary Compensation Table in fiscal year 2025. Please refer to the Summary Compensation Table in this Proxy Statement.
 
 
(b)
 
This column represents the average of the total amounts reported for the NEOs as a group (excluding Ms. Tekorius) in the “Stock Awards” column in the Summary Compensation Table in fiscal year 2025. Please refer to the Executive Compensation Tables section of this Proxy Statement. The amount in this column is replaced with the amount reported under the Average
Non-PEO
NEO Adjusted Value of Equity Awards column in order to arrive at compensation actually paid for fiscal year 2025.
 
 
(c)
 
This column represents an adjustment to the average of the amounts reported for the NEOs as a group (excluding Ms. Tekorius) in the “Stock Awards” column in the Summary Compensation Table in fiscal year 2025 determined using the same methodology described above in Note 4(c). For fiscal year 2025, the adjusted amount replaces the “Stock Awards” column in the Summary Compensation Table for each NEO (excluding Ms. Tekorius) to arrive at “compensation actually paid” to each NEO (excluding Ms. Tekorius) for fiscal year 2025, which is then averaged to determine the average “compensation actually paid” to the NEOs (excluding Ms. Tekorius) for fiscal year 2025. The amounts added or subtracted to determine the adjusted average amount are as follows:
 
Fiscal Year
  
Average Fiscal Year End
Fair Value of Equity
Awards Granted
in the Fiscal Year
  
Average Fiscal Year
over Fiscal Year Change in
Fair Value of Outstanding
and Unvested Equity Awards
at FYE Granted in
Prior Fiscal Years
  
Average Fair Value as of
Vesting Date of Equity
Awards Granted in the
Fiscal Year and Vested
in the Fiscal Year
  
Average Change in
Fair Value of Equity
Awards Granted in
Prior Fiscal Years that
Vested in the Fiscal Year
  
Average Fair Value at the
End of the Prior Fiscal
Year of Equity Awards
that Failed to Meet
Vesting Conditions in
the Fiscal Year
  
Average Value of Dividends or
other Earnings Paid on
Stock Awards not Otherwise
Reflected in Fair Value or
Total Compensation in the
Summary Compensation Table
for the Fiscal Year
  
Adjusted Average   
Value of Equity   
Awards  
2025
    
$
1,371,566
    
$
265,330
    
$
0
    
$
78,717
    
$
(8,823
)
    
$
53,321
    
$
1,760,111
 
 
The fair value or change in fair value, as applicable, of stock awards was determined using the same methodology described above in Note 4(c).
       
Compensation Actually Paid vs. Total Shareholder Return
LOGO
       
Compensation Actually Paid vs. Net Income
LOGO
       
Compensation Actually Paid vs. Company Selected Measure
LOGO
       
Total Shareholder Return Vs Peer Group
LOGO
       
Tabular List, Table
FINANCIAL PERFORMANCE MEASURES
As described in greater detail in the Compensation Discussion and Analysis section of this Proxy Statement, the Company’s executive compensation program reflects a
pay-for-performance
philosophy. The metrics that the Company uses for both our long-term and short-term incentive awards are selected based on an objective of incentivizing our NEOs to increase the value of our enterprise for our shareholders. The most important financial performance measures used by the Company to link executive compensation actually paid to the Company’s NEOs, for the most recently completed fiscal year, to the Company’s performance are as follows:
 
•
  
Company EBITDA;
 
•
  
Company EPS;
 
•
  
Company ROIC;
 
•
  
rTSR;
 
•
  
Greenbrier-Astra Rail EBITDA; and
 
•
  
Greenbrier-Astra Rail
Pre-Tax
Income
       
Total Shareholder Return Amount $ 197.35 200.3 171.31 111.03 167.05
Peer Group Total Shareholder Return Amount 173.39 167.51 142.79 135.31 153.97
Net Income (Loss) $ 204,100,000 $ 160,100,000 $ 62,500,000 $ 46,900,000 $ 32,400,000
Company Selected Measure Amount 512,300,000 451,100,000 340,300,000 231,300,000 150,300,000
Measure:: 1          
Pay vs Performance Disclosure          
Name Company EBITDA        
Measure:: 2          
Pay vs Performance Disclosure          
Name Company EPS        
Measure:: 3          
Pay vs Performance Disclosure          
Name Company ROIC        
Measure:: 4          
Pay vs Performance Disclosure          
Name rTSR        
Measure:: 5          
Pay vs Performance Disclosure          
Name Greenbrier-Astra Rail EBITDA        
Measure:: 6          
Pay vs Performance Disclosure          
Name Greenbrier-Astra Rail Pre-Tax Income        
William A. Furman [Member]          
Pay vs Performance Disclosure          
PEO Total Compensation Amount       $ 6,633,675 $ 5,580,229
PEO Actually Paid Compensation Amount       $ 2,293,623 $ 9,401,783
Lorie L. Tekorius [Member]          
Pay vs Performance Disclosure          
PEO Total Compensation Amount $ 7,706,230 $ 6,500,650 $ 5,639,481    
PEO Actually Paid Compensation Amount 8,376,353 $ 9,514,546 $ 8,638,530    
Non-PEO NEO Average Total Compensation Amount 3,192,562        
Non-PEO NEO Average Compensation Actually Paid Amount $ 3,379,388        
PEO | William A. Furman [Member]          
Pay vs Performance Disclosure          
PEO Name       William A. Furman William A. Furman
PEO | Lorie L. Tekorius [Member]          
Pay vs Performance Disclosure          
PEO Name Lorie L. Tekorius Lorie L. Tekorius Lorie L. Tekorius    
PEO | Lorie L. Tekorius [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ (4,535,537)        
PEO | Lorie L. Tekorius [Member] | Equity Awards Adjustments, Excluding Value Reported in Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 5,205,660        
PEO | Lorie L. Tekorius [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 3,954,013        
PEO | Lorie L. Tekorius [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 885,598        
PEO | Lorie L. Tekorius [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0        
PEO | Lorie L. Tekorius [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 236,210        
PEO | Lorie L. Tekorius [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (25,368)        
PEO | Lorie L. Tekorius [Member] | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 155,207        
Non-PEO NEO | Lorie L. Tekorius [Member] | Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (1,573,285)        
Non-PEO NEO | Lorie L. Tekorius [Member] | Equity Awards Adjustments, Excluding Value Reported in Compensation Table          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 1,760,111        
Non-PEO NEO | Lorie L. Tekorius [Member] | Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 1,371,566        
Non-PEO NEO | Lorie L. Tekorius [Member] | Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 265,330        
Non-PEO NEO | Lorie L. Tekorius [Member] | Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 0        
Non-PEO NEO | Lorie L. Tekorius [Member] | Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount 78,717        
Non-PEO NEO | Lorie L. Tekorius [Member] | Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount (8,823)        
Non-PEO NEO | Lorie L. Tekorius [Member] | Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year          
Pay vs Performance Disclosure          
Adjustment to Compensation, Amount $ 53,321