Leases - Additional Information (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Jun. 30, 2021	Dec. 31, 2020
Lessee Option to Extend	5 years
Finance Lease, Right-of-Use Asset	$ 300	$ 300
Finance Lease Right-of-Use Asset Accumulated Depreciation	$ 100	$ 80
Minimum [Member]
Lease Weighted Average Remaining Lease Term	1 year
Maximum [Member]
Lease Weighted Average Remaining Lease Term	9 years

Amount of accumulated depreciation expense attributable to right-of-use asset from finance lease.

No definition available.

Name:	cyrx_FinanceLeaseRightofuseAssetAccumulatedDepreciation
Namespace Prefix:	cyrx_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

Weighted average remaining lease term for operating and finance lease.

+ References

No definition available.

+ Details

Name:	cyrx_LeaseWeightedAverageRemainingLeaseTerm1
Namespace Prefix:	cyrx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Description of terms and conditions of option to extend operating and finance sublease.

+ References

No definition available.

+ Details

Name:	cyrx_LesseeOptionToExtend
Namespace Prefix:	cyrx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount, after accumulated amortization, of right-of-use asset from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121603541&loc=SL77918627-209977

+ Details

Name:	us-gaap_FinanceLeaseRightOfUseAsset
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: