December 31, 2024

September 30, 2024

Gross
Carrying
Value

Accumulated
Amortization

Net
Carrying
Amount

Gross
Carrying
Value

Accumulated
Amortization

Net
Carrying
Amount

Intangible assets with finite lives:

Customer relationships and contracts:

Aerospace

$

281,683

$

(247,391

)

$

34,292

$

281,683

$

(246,152

)

$

35,531

Industrial

357,461

(98,375

)

259,086

399,030

(114,391

)

284,639

Total

$

639,144

$

(345,766

)

$

293,378

$

680,713

$

(360,543

)

$

320,170

Intellectual property:

Aerospace

$

—

$

—

$

—

$

—

$

—

$

—

Industrial

3,139

(3,139

)

—

3,139

(3,139

)

—

Total

$

3,139

$

(3,139

)

$

—

$

3,139

$

(3,139

)

$

—

Process technology:

Aerospace

$

44,570

$

(40,503

)

$

4,067

$

44,570

$

(40,346

)

$

4,224

Industrial

79,160

(32,513

)

46,647

87,257

(35,983

)

51,274

Total

$

123,730

$

(73,016

)

$

50,714

$

131,827

$

(76,329

)

$

55,498

Other intangibles:

Aerospace

$

—

$

—

$

—

$

—

$

—

$

—

Industrial

557

(557

)

—

592

(592

)

—

Total

$

557

$

(557

)

$

—

$

592

$

(592

)

$

—

Intangible asset with indefinite life:

Trade name:

Aerospace

$

—

$

—

$

—

$

—

$

—

$

—

Industrial

60,325

—

60,325

64,751

—

64,751

Total

$

60,325

$

—

$

60,325

$

64,751

$

—

$

64,751

Total intangibles:

Aerospace

$

326,253

$

(287,894

)

$

38,359

$

326,253

$

(286,498

)

$

39,755

Industrial

500,642

(134,584

)

366,058

554,769

(154,105

)

400,664

Consolidated Total

$

826,895

$

(422,478

)

$

404,417

$

881,022

$

(440,603

)

$

440,419