CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended
Mar. 31, 2015	Mar. 31, 2014
Operating activities:
Net income	$ 8,822us-gaap_ProfitLoss	$ 5,095us-gaap_ProfitLoss
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization expense	2,716us-gaap_DepreciationAndAmortization	2,125us-gaap_DepreciationAndAmortization
Provision for bad debts	5,259us-gaap_ProvisionForDoubtfulAccounts	3,362us-gaap_ProvisionForDoubtfulAccounts
Stock-based compensation expense	991us-gaap_ShareBasedCompensation	1,048us-gaap_ShareBasedCompensation
Deferred income taxes	(183)us-gaap_DeferredIncomeTaxExpenseBenefit	395us-gaap_DeferredIncomeTaxExpenseBenefit
Impairment of intangibles and other	79us-gaap_GoodwillImpairmentLoss	0us-gaap_GoodwillImpairmentLoss
Loss on disposal of assets	284	0
Changes in operating assets and liabilities, net of acquisitions:
Receivables	(7,026)	956
Prepaid expenses and other assets	(2,549)	(39)
Prepaid income taxes	2,478us-gaap_IncreaseDecreaseInPrepaidTaxes	248us-gaap_IncreaseDecreaseInPrepaidTaxes
Accounts payable and accrued expenses	10,624	(6,428)
Net amounts due to/from governmental entities	1,109	(659)
Net cash provided by operating activities	22,604	6,103
Investing activities:
Purchases of property, building and equipment	(2,958)	(1,520)
Cash paid for acquisitions, primarily goodwill and intangible assets	(567)	(61,159)
Net cash (used in) investing activities	(3,525)	(62,679)
Financing activities:
Proceeds from line of credit	0us-gaap_ProceedsFromLinesOfCredit	60,000us-gaap_ProceedsFromLinesOfCredit
Payments on line of credit	(13,000)us-gaap_RepaymentsOfLinesOfCredit	(12,000)us-gaap_RepaymentsOfLinesOfCredit
Proceeds from employee stock purchase plan	210us-gaap_ProceedsFromStockPlans	184us-gaap_ProceedsFromStockPlans
Payments on debt	(57)	(37)
Noncontrolling interest distributions	(2,242)	(1,768)
Excess tax benefits from vesting of stock awards	642	112
Redemption of treasury shares	(1,122)	(727)
Sale of noncontrolling interest	0	193
Net cash provided by (used in) financing activities	(15,569)	45,957
Change in cash	3,510	(10,619)
Cash at beginning of period	531us-gaap_Cash	14,014us-gaap_Cash
Cash at end of period	4,041us-gaap_Cash	3,395us-gaap_Cash
Supplemental disclosures of cash flow information:
Interest paid	447us-gaap_InterestPaidNet	370us-gaap_InterestPaidNet
Income taxes paid	$ 1,787us-gaap_IncomeTaxesPaidNet	$ 2,413us-gaap_IncomeTaxesPaidNet

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Amount of cash outflow for payment of an obligation from a lender, including but not limited to, letter of credit, standby letter of credit and revolving credit arrangements.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(f))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph f

-Article 4

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 230

-SubTopic 10

-Section 45

-Paragraph 15

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=31042434&loc=d3e3291-108585

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

-URI http://asc.fasb.org/extlink&oid=6513228

+ Details

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- Definition

The aggregate amount of noncash, equity-based employee remuneration. This may include the value of stock or unit options, amortization of restricted stock or units, and adjustment for officers' compensation. As noncash, this element is an add back when calculating net cash generated by operating activities using the indirect method.

+ References

+ Details

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- Details

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