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Changes in Accumulated Other Comprehensive Income (Loss) by Component (Tables)
9 Months Ended
Jun. 30, 2020
Changes in Accumulated Other Comprehensive Income (Loss) by Component  
Schedule of accumulated other comprehensive income (loss)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended June 30, 2019

​

    

Pension

    

Postretirement

    

Foreign

    

​

​

​

​

Plan

​

Plan

​

Exchange

​

Total

Accumulated other comprehensive income (loss) as of March 31, 2019

​

$

(20,860)

​

$

(10,655)

​

$

(10,031)

​

$

(41,546)

Other comprehensive income (loss) before reclassifications

​

 

—

​

 

—

​

 

(1,803)

​

 

(1,803)

Amounts reclassified from accumulated other comprehensive income (loss)

​

 

​

​

 

​

​

 

​

​

 

​

Amortization of Pension and Postretirement Plan items (1)

​

​

51

​

​

—

​

​

—

​

​

51

Actuarial losses (1)

​

​

364

​

​

372

​

​

—

​

​

736

Tax benefit

​

​

(108)

​

​

(99)

​

​

—

​

​

(207)

Net current-period other comprehensive income (loss)

​

 

307

​

 

273

​

 

(1,803)

​

 

(1,223)

Accumulated other comprehensive income (loss) as of June 30, 2019

​

$

(20,553)

​

$

(10,382)

​

$

(11,834)

​

$

(42,769)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Three Months Ended June 30, 2020

​

    

Pension

    

Postretirement

    

Foreign

    

​

​

​

​

Plan

​

Plan

​

Exchange

​

Total

Accumulated other comprehensive income (loss) as of March 31, 2020

​

$

(59,562)

​

$

(17,409)

​

$

(13,186)

​

$

(90,157)

Other comprehensive income (loss) before reclassifications

​

 

—

​

 

—

​

 

(176)

​

 

(176)

Amounts reclassified from accumulated other comprehensive income (loss)

​

 

​

​

 

​

​

 

​

​

 

​

Amortization of Pension and Postretirement Plan items (1)

​

​

51

​

​

—

​

​

—

​

​

51

Actuarial losses (1)

​

​

1,819

​

​

461

​

​

—

​

​

2,280

Tax benefit

​

​

(489)

​

​

(123)

​

​

—

​

​

(612)

Net current-period other comprehensive income (loss)

​

 

1,381

​

 

338

​

 

(176)

​

 

1,543

Accumulated other comprehensive income (loss) as of June 30, 2020

​

$

(58,181)

​

$

(17,071)

​

$

(13,362)

​

$

(88,614)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Nine Months Ended June 30, 2019

​

    

Pension

    

Postretirement

    

Foreign

    

​

​

​

​

Plan

​

Plan

​

Exchange

​

Total

Accumulated other comprehensive income (loss) as of September 30, 2018

​

$

(21,473)

​

$

(11,201)

​

$

(9,891)

​

$

(42,565)

Other comprehensive income (loss) before reclassifications

​

 

—

​

 

—

​

 

(1,943)

​

 

(1,943)

Amounts reclassified from accumulated other comprehensive income (loss)

​

 

​

​

 

​

​

 

​

​

 

​

Amortization of Pension and Postretirement Plan items (1)

​

​

154

​

​

—

​

​

—

​

​

154

Actuarial losses (1)

​

​

1,091

​

​

1,115

​

​

—

​

​

2,206

Tax benefit

​

​

(325)

​

​

(296)

​

​

—

​

​

(621)

Net current-period other comprehensive income (loss)

​

 

920

​

 

819

​

 

(1,943)

​

 

(204)

Accumulated other comprehensive loss as of June 30, 2019

​

$

(20,553)

​

$

(10,382)

​

$

(11,834)

​

$

(42,769)

​

​

​

​

​

​

​

​

​

​

​

​

​

​

​

Nine Months Ended June 30, 2020

​

    

Pension

    

Postretirement

    

Foreign

    

​

​

​

​

Plan

​

Plan

​

Exchange

​

Total

Accumulated other comprehensive income (loss) as of September 30, 2019

​

$

(53,811)

​

$

(13,316)

​

$

(13,511)

​

$

(80,638)

Other comprehensive income (loss) before reclassifications

​

 

—

​

 

—

​

 

149

​

 

149

Amounts reclassified from accumulated other comprehensive income (loss)

​

 

​

​

 

​

​

 

​

​

 

​

Amortization of Pension and Postretirement Plan items (1)

​

​

154

​

​

—

​

​

—

​

​

154

Actuarial losses (1)

​

​

5,461

​

​

1,386

​

​

—

​

​

6,847

Tax benefit

​

​

(1,476)

​

​

(367)

​

​

—

​

​

(1,843)

Net current-period other comprehensive income (loss)

​

 

4,139

​

 

1,019

​

 

149

​

 

5,307

Reclass due to adoption of ASU 2018-02

​

​

(8,509)

​

​

(4,774)

​

​

—

​

​

(13,283)

Accumulated other comprehensive loss as of June 30, 2020

​

$

(58,181)

​

$

(17,071)

​

$

(13,362)

​

$

(88,614)

​

(1)These accumulated other comprehensive income components are included in the computation of net periodic pension cost.