CONSOLIDATED STATEMENT OF SHAREHOLDERS' EQUITY (unaudited) - 6 months ended Jun. 30, 2016 - USD ($) $ in Thousands	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, 2015	$ 146	$ 45,251	$ 149,016	$ (31,628)	$ 162,785	$ 30,325	$ 193,110
Beginning Balance (in shares) at Dec. 31, 2015	14,636			(2,215)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net tax benefit from equity-based awards	$ 0	556	0	$ 0	556	0	556
Issuance of restricted stock	$ 1	0	0	0	1	0	1
Issuance of restricted stock (in shares)	99
Cancellation of restricted stock	$ 0	0	0	0	0	0	0
Compensation expense - equity-based awards	0	2,484	0	0	2,484	0	2,484
Transfer of compensation liability for certain stock issued pursuant to long-term incentive plans	0	211	0	0	211	0	211
Purchase of business	0	0	0	0	0	11,190	11,190
Acquisition of non-controlling interests, net	0	(266)	0	0	(266)	(98)	(364)
Reclass to redeemable non-controlling interests	0	0	0	0	0	(976)	(976)
Distributions to non-controlling interest partners	0	0	0	0		(4,776)	(4,776)
Cash dividends to shareholders	0	0	(4,254)	0	(4,254)	0	(4,254)
Net income	0	0	12,399	0	12,399	4,829	17,228
Ending Balance at Jun. 30, 2016	$ 147	$ 48,236	$ 157,161	$ (31,628)	$ 173,916	$ 40,494	$ 214,410
Ending Balance (in shares) at Jun. 30, 2016	14,735			(2,215)