Business Combinations (Details) € in Thousands, $ in Thousands							3 Months Ended								5 Months Ended	12 Months Ended
		Aug. 31, 2017 EUR (€)	Aug. 31, 2017 USD ($)	Dec. 30, 2016 USD ($)	Feb. 01, 2016 EUR (€)	Feb. 01, 2016 USD ($)	Jun. 30, 2018 USD ($)	Mar. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Sep. 30, 2017 USD ($)	Jun. 30, 2017 USD ($)	Mar. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Sep. 30, 2016 USD ($)	Jun. 30, 2016 USD ($)	Jun. 30, 2018 USD ($)		Jun. 30, 2017 USD ($)		Jun. 30, 2016 EUR (€)	Jun. 30, 2016 USD ($)	Feb. 01, 2016 USD ($)
Business Acquisition [Line Items]
Cash Dividends Paid to Parent Company by Consolidated Subsidiaries																$ 11,874
Gain (loss) on sale of subsidiaries																47,545		$ 0			$ 0
Payments to Acquire Businesses, Gross						$ 152,100
Business Combination, Consideration Transferred						162,095												212,632
Net Income (Loss) Attributable to Parent							$ (7,300)	$ (2,265)	$ 29,935	$ 23,363	$ (34,702)	$ (42,934)	$ 35,028	$ (29,103)		43,733		(71,711)			54,349
Revenues							631,134	$ 636,069	$ 762,054	$ 563,284	564,256	$ 550,585	$ 576,851	$ 443,713		2,613,545		2,141,095			1,788,044
Pro forma net income attributable to Cimpress																		(71,084)			41,370
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable						8,810
Goodwill, Purchase Accounting Adjustments																(144)	[1]	(13,768)
Goodwill (1)							520,843				514,963				$ 466,005	520,843		514,963			466,005
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed																					1,289
Goodwill, Acquired During Period																		57,720
Goodwill, Impairment Loss																		6,345
Business Acquisition, Pro Forma Revenue																		2,294,347			2,060,426
Business Combination, Consideration Transferred, Other						1,185
Albumprinter_Disposal [Member]
Business Acquisition [Line Items]
Proceeds from Divestiture of Interest in Consolidated Subsidiaries		€ 78,382	$ 93,071
Tradeprint Distribution Limited & Litoipografia Alcione S.r.L [Member]
Business Acquisition [Line Items]
Business Combination, Consideration Transferred																					25,547
Goodwill (1)															9,571						9,571
Customer relationships															14,359						14,359
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net															1,617						1,617
National Pen CO. LLC [Member]
Business Acquisition [Line Items]
Payments to Acquire Businesses, Gross				$ 214,573
Post Closing Purchase Price Adjustment																		1,941
Business Combination, Consideration Transferred				212,632
Cash Acquired from Acquisition				8,337
Business Acquisition, Goodwill, Expected Tax Deductible Amount				$ 19,000
Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed																		2,005
Business Acquisition, Percentage of Voting Interests Acquired				100.00%
Accrued expenses acquired in business combinations				$ (17,805)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets				1,270
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable				(12,590)
Business Combination, Acquired Receivable, Fair Value				20,921
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory				19,854
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other				11,281
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment				29,472
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Other				(908)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent				(3,255)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Other				$ (9,665)
WIRmachenDRUCK GmbH [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Liability											5,453							5,453
Payments to Acquire Businesses, Gross					€ 138,383	150,128
Post Closing Purchase Price Adjustment																				€ (1,850)	(2,082)
Business Combination, Consideration Transferred						162,095
Net Income (Loss) Attributable to Parent															3,420
Cash Acquired from Acquisition																						$ 15,220
Revenues															72,620
Business Combination, Consideration Transferred, Equity Interests Issued and Issuable					€ 8,121	8,810
Business Acquisition, Percentage of Voting Interests Acquired					100.00%																	100.00%
Goodwill, Acquired During Period						$ 91,515
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets																						$ 1,259
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable																						(17,566)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Other																						5,231
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Deferred Tax Liabilities Noncurrent																						(26,863)
Trade Names [Member] | National Pen CO. LLC [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				11 years
Customer relationships				$ 33,000
Trade Names [Member] | WIRmachenDRUCK GmbH [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					15 years	15 years
Customer relationships																						24,952
Customer Relationships [Member] | National Pen CO. LLC [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				7 years
Customer relationships				$ 56,000
Customer Relationships [Member] | WIRmachenDRUCK GmbH [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					7 years	7 years
Customer relationships																						24,952
Print Network [Member] | WIRmachenDRUCK GmbH [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					9 years	9 years
Customer relationships																						23,867
Referral Network [Member] | WIRmachenDRUCK GmbH [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					7 years	7 years
Customer relationships																						10,849
Developed Technology Rights [Member] | National Pen CO. LLC [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life				6 years
Customer relationships				$ 19,000
Developed Technology Rights [Member] | WIRmachenDRUCK GmbH [Member]
Business Acquisition [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life					3 years	3 years
Customer relationships																						8,679
Maximum [Member] | WIRmachenDRUCK GmbH [Member]
Business Acquisition [Line Items]
Business Combination, Contingent Consideration, Liability					€ 40,000																	$ 43,395
Upload and Print Business Units [Member]
Business Acquisition [Line Items]
Revenues																730,010	[2]	588,613	[2]		432,638
Goodwill, Purchase Accounting Adjustments																		(228)
Goodwill (1)							328,771				321,805				319,373	328,771		321,805			319,373
Goodwill, Impairment Loss																		6,345
National Pen CO. LLC [Member]
Business Acquisition [Line Items]
Revenues																333,266	[3]	112,712	[3]		0
Goodwill, Purchase Accounting Adjustments	[1]															(86)
Goodwill (1)							34,434				34,520				0	34,434		34,520			0
Goodwill, Acquired During Period																		57,720
Goodwill, Transfers	[1]			$ (23,200)
Vistaprint Business Unit [Member]
Business Acquisition [Line Items]
Revenues																1,462,686	[4]	1,310,975	[4]		1,220,751
Goodwill, Purchase Accounting Adjustments	[1]															(58)
Goodwill (1)							$ 146,207				$ 147,207				$ 121,752	$ 146,207		147,207			$ 121,752
Goodwill, Transfers																		$ 23,200

[1] Refer to Note 7 for additional details related to our acquisitions.

[2] Upload and Print segment revenues include inter-segment revenue of $1,521 for the year ended June 30, 2018. No inter-segment revenue was recognized in the prior comparable periods.

[3] National Pen segment revenues include inter-segment revenue of $2,956 for the year ended June 30, 2018. No inter-segment revenue was recognized in the prior comparable periods.

[4] Vistaprint segment revenues include inter-segment revenue of $10,542, $5,690 and $3,589 for the years ended June 30, 2018, 2017 and 2016