Other comprehensive loss consists of foreign currency translation adjustments which includes the settlements of net investment hedges, unrealized gains and losses from cash flow hedges, and the unamortized gain on post-retirement plans, net of their related tax effects.

The following table illustrates the changes in the balances of each component of accumulated other comprehensive loss, net of tax, for the nine months ended April 30, 2021:


	Unrealized (loss) gain on cash flow hedges		Unamortized gain on post-retirement plans		Foreign currency translation adjustments		Accumulated other comprehensive loss
Beginning balance, July 31, 2020	$	(200)	$	2,181	$	(68,458)	$	(66,477)
Other comprehensive income (loss) before reclassification	1,189		(23)		16,848		18,014
Amounts reclassified from accumulated other comprehensive loss	(16)		(69)		—		(85)
Ending balance, April 30, 2021	$	973	$	2,089	$	(51,610)	$	(48,548)

The decrease in accumulated other comprehensive loss as of April 30, 2021 compared to July 31, 2020, was primarily due to the depreciation of the U.S. dollar against certain other currencies during the nine-month period.

The following table illustrates the changes in the balances of each component of accumulated other comprehensive loss, net of tax, for the nine months ended April 30, 2020:


	Unrealized gain (loss) on cash flow hedges		Unamortized gain on post-retirement plans		Foreign currency translation adjustments		Accumulated other comprehensive loss
Beginning balance, July 31, 2019	$	707	$	2,800	$	(74,761)	$	(71,254)
Other comprehensive loss before reclassification	(1,363)		(216)		(18,510)		(20,089)
Amounts reclassified from accumulated other comprehensive loss	(584)		(315)		—		(899)
Ending balance, April 30, 2020	$	(1,240)	$	2,269	$	(93,271)	$	(92,242)

The increase in accumulated other comprehensive loss as of April 30, 2020, compared to July 31, 2019, was primarily due to the appreciation of the U.S. dollar against certain other currencies during the nine-month period.

Of the amounts reclassified from accumulated other comprehensive loss during the nine months ended April 30, 2021 and 2020, unrealized gains on cash flow hedges were reclassified to "Cost of goods sold" and net unamortized gains on post-retirement plans were reclassified into "Investment and other income" on the condensed consolidated statements of income.

The following table illustrates the income tax benefit (expense) on the components of other comprehensive income (loss) for the three and nine months ended April 30, 2021 and 2020:


	Three months ended April 30,				Nine months ended April 30,
	2021		2020		2021		2020
Income tax benefit (expense) related to items of other comprehensive income (loss):
Cash flow hedges	$	(71)	$	(6)	$	(72)	$	24
Pension and other post-retirement benefits	—		—		246		93
Other income tax adjustments and currency translation	372		(173)		(925)		(127)
Income tax benefit (expense) related to items of other comprehensive income (loss)	$	301	$	(179)	$	(751)	$	(10)