Pension Benefits - Fair Value of Plan Assets (Footnote) (Detail)	Dec. 31, 2016
Compensation and Retirement Disclosure [Abstract]
Growth oriented assets	56.00%
Defensive assets	44.00%

Defined benefit plan, mutual funds asset allocations percentage growth oriented assets.

No definition available.

Name:	tk_DefinedBenefitPlanMutualFundsAssetAllocationsPercentageGrowthOrientedAssets
Namespace Prefix:	tk_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant