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Summary of Significant Accounting Policies (Tables) | 12 Months Ended
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Dec. 31, 2016
Accounting Policies [Abstract] |
Schedule of Useful Lives for Property and Equipment | Useful lives for major categories of property and equipment are as follows:
Land improvements | 50 years
Buildings | 28 to 40 years
Building improvements and fixtures | 3 to 10 years
Furniture, equipment and purchased software | 3 to 5 years

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- Definition Tabular disclosure of useful lives for major categories of property and equipment + References No definition available. + Details
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Namespace Prefix: | expd_
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Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
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Balance Type: | na
Period Type: | duration