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Income Taxes - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Cash payments for income taxes	$ 222.1	$ 238.3	$ 189.5
Accrued interest on income taxes	1.1	$ 1.0
Reasonably possible change in unrecognized tax benefits in next 12 months	$ 2.7
Federal
Income tax examination (description)	A federal examination of the tax years 2010 - 2012 was concluded in February 2015.
Foreign
Open tax year	2009
Minimum | Federal
Open tax year	2014
Minimum | State
Open tax year	2012
Minimum | Boise Inc.
Open tax year	2008
Maximum | Federal
Open tax year	2016
Maximum | State
Open tax year	2016
Maximum | Boise Inc.
Open tax year	2013

X

- Definition

Amount of decrease reasonably possible in the next twelve months for the unrecognized tax benefit.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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A brief description of status of the tax examination, significant findings to date, and the entity's position with respect to the findings.

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Tax year that remains open to examination under enacted tax laws, in CCYY format.

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Amount of interest expense accrued for an underpayment of income taxes.

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