Operating Expenses (Tables)

12 Months Ended

Dec. 31, 2015

Operating Expenses [Abstract]

Schedule Of Direct Operating Expenses

Year ended December 31,		2015		2014		2013
Employee compensation expenses	$	22,855	$	22,857	$	20,755
Buildings and facilities expenses		7,179		7,609		7,510
Travel, advertising and promotion expenses		22,150		23,006		22,077
Other direct expenses ( net of recoveries)		3,842		4,412		3,666
	$	56,026	$	57,884	$	54,008

Schedule Of Selling, General And Administrative Expenses

Year ended December 31,		2015		2014		2013
Employee compensation expenses	$	166,418	$	159,398	$	158,448
Buildings and facilities expenses		41,404		41,725		40,820
Travel, advertising and promotion expenses		22,307		22,454		20,728
Other SG&A expenses		24,861		24,643		23,740
	$	254,990	$	248,220	$	243,736

Schedule Of Depreciation And Amortization Expenses

Year ended December 31,		2015		2014		2013
Depreciation expense	$	35,374	$	39,966	$	39,655
Amortization expense		6,658		4,570		3,625
	$	42,032	$	44,536	$	43,280

Schedule Of Employee Compensation Expenses

Year ended December 31,		2015		2014		2013
Wages, salaries and other benefits	$	139,878	$	136,650	$	137,346
Social security costs		10,692		11,067		10,931
Defined contribution plans		3,794		3,378		3,867
Share-based payment expenses		11,006		10,846		8,266
Profit-sharing and bonuses		23,903		14,781		18,793
Termination benefits		-		5,533		-
	$	189,273	$	182,255	$	179,203