Discontinued Operations (Financial Statement Information) (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Dec. 31, 2016	Mar. 31, 2016
Income Statement [Abstract]
Gain from discontinued operations, net of tax	$ 2,417		$ (58)
Statement of Financial Position [Abstract]
Deferred income tax asset and other current assets	5,067	$ 662
Discontinued Operations, Disposed of by Sale [Member] | Components Total [Member]
Income Statement [Abstract]
Operating revenue	0	0
(Loss)/gain from discontinued operations before income taxes	3,914	(94)
Income tax (benefit)/expense	1,497	(36)
Gain from discontinued operations, net of tax	2,417	(58)
Statement of Financial Position [Abstract]
Deferred income tax asset and other current assets	5,067	662
Accounts payable, accrued expenses and other current liabilities	3,026	3,123
Discontinued Operations, Disposed of by Sale [Member] | Asset Management and Processing Solutions [Member] | Asset Management and Processing Solutions [Member]
Income Statement [Abstract]
Operating revenue	0	0
(Loss)/gain from discontinued operations before income taxes	4,035	(94)
Income tax (benefit)/expense	1,543	(36)
Gain from discontinued operations, net of tax	2,492	(58)
Statement of Financial Position [Abstract]
Deferred income tax asset and other current assets	4,768	568
Accounts payable, accrued expenses and other current liabilities	2,353	2,130
Discontinued Operations, Disposed of by Sale [Member] | Employer And Litigation Services [Member] | Employer And Litigation Services [Member]
Income Statement [Abstract]
Operating revenue	0	0
(Loss)/gain from discontinued operations before income taxes	(121)	0
Income tax (benefit)/expense	(46)	0
Gain from discontinued operations, net of tax	(75)	0
Statement of Financial Position [Abstract]
Deferred income tax asset and other current assets	205	0
Accounts payable, accrued expenses and other current liabilities	287	624
Discontinued Operations, Disposed of by Sale [Member] | Discontinued Operations Appraisal [Member] | Risk Management and Work Flow [Member]
Income Statement [Abstract]
Operating revenue	0	0
(Loss)/gain from discontinued operations before income taxes	0	0
Income tax (benefit)/expense	0	0
Gain from discontinued operations, net of tax	0	0
Statement of Financial Position [Abstract]
Deferred income tax asset and other current assets	(231)	(231)
Accounts payable, accrued expenses and other current liabilities	166	167
Discontinued Operations, Disposed of by Sale [Member] | Discontinued Operations Marketing [Member] | Property Intelligence [Member]
Income Statement [Abstract]
Operating revenue	0	0
(Loss)/gain from discontinued operations before income taxes	0	0
Income tax (benefit)/expense	0	0
Gain from discontinued operations, net of tax	0	0
Statement of Financial Position [Abstract]
Deferred income tax asset and other current assets	325	325
Accounts payable, accrued expenses and other current liabilities	$ 220	$ 202