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Minimum specified forecast period afterwards cash flows determined using terminal value calculation.

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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.

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Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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No definition available.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of amortization expense for assets, excluding financial assets and goodwill, lacking physical substance with a finite life expected to be recognized during the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of (increase) decrease to an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from the subsequent recognition of deferred tax assets.

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Amount of impairment loss resulting from write-down of assets, excluding financial assets and goodwill, lacking physical substance and having a projected indefinite period of benefit to fair value.

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Goodwill and Other Intangible Assets - Additional Information (Detail) (USD $)	12 Months Ended			3 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2012
Goodwill And Other Intangible Assets [Line Items]
Discrete forecast period	5 years
Goodwill impairment	$ 0us-gaap_GoodwillImpairmentLoss	$ 14,510,000us-gaap_GoodwillImpairmentLoss	$ 69,158,000us-gaap_GoodwillImpairmentLoss
Amortization of intangible assets	700,000us-gaap_AmortizationOfIntangibleAssets	700,000us-gaap_AmortizationOfIntangibleAssets	900,000us-gaap_AmortizationOfIntangibleAssets
Estimated remaining amortization expense, 2015	800,000
Estimated remaining amortization expense, 2016	600,000
Estimated remaining amortization expense, 2017	300,000
Estimated remaining amortization expense, 2018	300,000
Estimated remaining amortization expense, 2019	300,000
Estimated remaining amortization expense, thereafter	400,000
Impairment expense	0	0	0
Technology [Member]
Goodwill And Other Intangible Assets [Line Items]
Goodwill impairment		0
Finance and Accounting [Member]
Goodwill And Other Intangible Assets [Line Items]
Goodwill impairment		0
Government Solutions [Member]
Goodwill And Other Intangible Assets [Line Items]
Goodwill impairment		14,510,000	69,158,000	3,900,000
Goodwill related tax benefit		$ 5,200,000	$ 24,700,000	$ 1,400,000