This element represents the amount of recognized equity-based compensation during the period, that is, the amount recognized as expense in the income statement (or as asset if compensation is capitalized). Alternate captions include the words "stock-based compensation".

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 35

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415241&loc=d3e4534-113899

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 1

-Subparagraph (b)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5047-113901

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 12

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11149-113907

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 20

-Section 55

-Paragraph 13

-URI http://asc.fasb.org/extlink&oid=32706628&loc=d3e11178-113907

CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (USD $) In Thousands, unless otherwise specified	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Total Shareholders' Equity [Member]	Non-controlling Interests [Member]	Total
Beginning Balance at Dec. 31, 2011	$ 139	$ 36,133	$ 102,405	$ (31,628)	$ 107,049	$ 14,531	$ 121,580
Beginning Balance (in shares) at Dec. 31, 2011	13,919			(2,215)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from exercise of stock options	2	20	0	0	22	0	22
Proceeds from exercise of stock options (in shares)	130			0
Net tax benefit from exercise of stock options		1,209			1,209		1,209
Issuance of restricted stock (in shares)	81
Cancellation of restricted stock (in shares)	0
Compensation expense - restricted stock		2,102			2,102		2,102
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans		135			135		135
Purchase of business						2,892	2,892
Acquisitions and sales of non-controlling interests, net		(955)			(955)	(244)	(1,199)
Contribution of non-controlling interest partners						49	49
Transfer of losses from non-controlling interests			0		(1,155)	1,155	0
Distributions to non-controlling interest partners						(9,332)	(9,332)
Cash dividends to shareholders			(9,017)		(9,017)		(9,017)us-gaap_DividendsCommonStock
Net income			17,933		17,933	8,285	26,218
Ending Balance at Dec. 31, 2012	141	37,489	111,321	(31,628)	117,323	17,336	134,659
Ending Balance (in shares) at Dec. 31, 2012	14,130			(2,215)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from exercise of stock options	2	45			47		47
Proceeds from exercise of stock options (in shares)	17
Net tax benefit from exercise of stock options		695			695		695
Issuance of restricted stock (in shares)	175
Cancellation of restricted stock		0			0		0
Cancellation of restricted stock (in shares)	(6)
Compensation expense - restricted stock		2,743			2,743		2,743
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans		248			248		248
Purchase of business						10,541	10,541
Acquisitions and sales of non-controlling interests, net		(651)			(651)	(155)	(806)
Reclass to redeemable non-controlling interests						(4,104)	(4,104)
Distributions to non-controlling interest partners						(9,164)	(9,164)
Cash dividends to shareholders			(4,838)		(4,838)		(4,838)us-gaap_DividendsCommonStock
Net income			12,723		12,723	8,273	20,996
Ending Balance at Dec. 31, 2013	143	40,569	119,206	(31,628)	128,290	22,727	151,017
Ending Balance (in shares) at Dec. 31, 2013	14,316			(2,215)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Proceeds from exercise of stock options	1	43			44		44
Proceeds from exercise of stock options (in shares)	21
Net tax benefit from exercise of stock options		948			948		948
Issuance of restricted stock (in shares)	150
Compensation expense - restricted stock		3,363			3,363		3,363
Purchase of business						4,725	4,725
Acquisitions and sales of non-controlling interests, net		(260)			(260)	(63)	(323)
Reclass to redeemable non-controlling interests		0			0	(6,375)	(6,375)
Contribution of non-controlling interest partners			0		0	177	177
Revaluation of redeemable non-controlling interets		(1,086)			(1,086)	0	(1,086)
Distributions to non-controlling interest partners						(9,432)	(9,432)
Cash dividends to shareholders			(5,873)		(5,873)	0	(5,873)us-gaap_DividendsCommonStock
Net income			20,853		20,853	9,175	30,028
Ending Balance at Dec. 31, 2014	$ 145	$ 43,577	$ 134,186	$ (31,628)	$ 146,280	$ 20,934	$ 167,214
Ending Balance (in shares) at Dec. 31, 2014	14,487			(2,215)