The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount of expense for amortization of capitalized computer software costs.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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No definition available.

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Customer Relationships and Other Intangibles, Net - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Finite-Lived Intangible Assets [Line Items]
Amortization expense	$ 3.5	$ 4.2	$ 7.1	$ 8.4
Selling, General and Administrative Expenses
Finite-Lived Intangible Assets [Line Items]
Amortization expense related to capitalized software	$ 0.4	$ 0.4	$ 0.8	$ 0.7
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			15 years
Trademarks
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			15 years
Purchased and internally developed software
Finite-Lived Intangible Assets [Line Items]
Finite-lived intangible asset, useful life			3 years