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- Definition

Escrow Deposits, Period Held

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- Definition

reserves incorrect disposition of assets

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Amount of increase (decrease) in accumulated other comprehensive income (AOCI) for reclassification to retained earnings of tax effect from remeasurement of deferred tax pursuant to Tax Cuts and Jobs Act.

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Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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Percentage of voting equity interests acquired at the acquisition date in the business combination.

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of increase (decrease) in the value of a contingent consideration liability, including, but not limited to, differences arising upon settlement.

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For contingent consideration arrangements recognized in connection with a business combination, this element represents an estimate of the high-end of the potential range (undiscounted) of the consideration which may be paid.

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Percentage of equity in the acquiree held by the acquirer immediately before the acquisition date in a business combination.

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Amount, before accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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- Definition

Costs of sales and operating expenses for the period incurred from transactions with related parties.

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The designation of funds furnished by a borrower to a lender to assure future payments of the borrower's real estate taxes and insurance obligations with respect to a mortgaged property. Escrow deposits may be made for a variety of other purposes such as earnest money and contingent payments. This element excludes replacement reserves which are an escrow separately provided for within the US GAAP taxonomy.

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Amount of gain (loss) recognized in settlement of litigation and insurance claims. Excludes claims within an insurance entity's normal claims settlement process.

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This item represents the entity's proportionate share for the period of the net income (loss) of its investee (such as unconsolidated subsidiaries and joint ventures) to which the equity method of accounting is applied. This item includes income or expense related to stock-based compensation based on the investor's grant of stock to employees of an equity method investee.

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Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer.

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The cash outflow associated with the purchase of or advances to an equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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Basis of Condensed Consolidated Financial Statements (Narrative) (Details) - USD ($) $ in Thousands	1 Months Ended		3 Months Ended			9 Months Ended
	Aug. 31, 2017	Jun. 30, 2017	Sep. 30, 2018	Mar. 31, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017	Jan. 01, 2018	Dec. 31, 2017
Equity in (losses)/earnings of affiliates, net of tax			$ (161)		$ (229)	$ 2,909	$ (1,232)
Revenue from related parties			300		2,800	900	6,900
Costs and Expenses, Related Party			1,000		3,200	6,300	8,900
Possible indemnification exposure, maximum			25,000			25,000
Gain related to legal settlement							$ 4,500
Deferred income tax assets and other current assets			400			400			$ 400
Disposal group, liabilities current			1,800			1,800			1,800
Tax escrow deposits			909,500			909,500			961,500
Reserves incorrect disposition of assets			21,500			21,500			21,700
Reclassification from AOCI to retained earnings for tax act				$ 400
Increase in contingent consideration value			100		$ 1,900	$ (1,000)
Accounting Standards Update 2014-09 \| Effect of Change Higher/(Lower)
Contract costs								$ 1,600
Minimum
Escrow deposits, period held by the Company (in business days)						2 days
Maximum
Escrow deposits, period held by the Company (in business days)						5 days
Accounts Payable and Accrued Liabilities
Reserves incorrect disposition of assets			$ 9,300			$ 9,300			$ 9,400
Ten Largest Clients \| Sales Revenue, Net \| Customer Concentration Risk
Concentration risk, percentage			32.00%		37.00%	32.00%	39.00%
Client A \| Sales Revenue, Net \| Customer Concentration Risk
Concentration risk, percentage							10.00%
Client B \| Sales Revenue, Net \| Customer Concentration Risk
Concentration risk, percentage					11.00%		12.00%
Mercury, Inc.
Business Combination, Step Acquisition, Equity Interest in Acquiree, Percentage		45.00%
Payments to acquire equity method investments		$ 70,000
Percentage of voting interests acquired	55.00%
Call Option Fair Value		$ 4,600
Business Combination, Consideration Transferred	$ 83,000