Column A

Column B

Column C

Column D

Column E

Additions

Description

Balance at

Beginning

of Period

Charges to

Cost and

Expenses

Recoveries

(Charges)

to Other

Accounts (1)

Deductions (2)

Balance at

End of

Period

(in thousands)

Allowance for doubtful accounts:

Year Ended April 30, 2019

$

17,845

$

14,260

$

(826

)

$

(9,697

)

$

21,582

Year Ended April 30, 2018

$

15,455

$

13,675

$

551

$

(11,836

)

$

17,845

Year Ended April 30, 2017

$

11,292

$

12,987

$

(415

)

$

(8,409

)

$

15,455

Deferred tax asset valuation allowance:

Year Ended April 30, 2019

$

15,682

$

5,170

$

—

$

(6,820

)

$

14,032

Year Ended April 30, 2018

$

21,278

$

3,421

$

—

$

(9,017

)

$

15,682

Year Ended April 30, 2017

$

22,030

$

7,931

$

—

$

(8,683

)

$

21,278

(1)

Exchange rate fluctuations.

(2)

Allowance for doubtful accounts represents accounts written-off, net of recoveries and deferred tax asset valuation represents release of prior valuation allowances.