Supplemental Guarantor Information (Details 2) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Condensed Income Statements, Captions [Line Items]
REVENUES	$ 653,635	$ 577,389	$ 1,171,034	$ 1,067,072
EXPENSES	584,209	526,290	1,061,004	978,692
OTHER (EXPENSE) INCOME	(2,882)	1,104	(2,145)	1,993
Income before taxes	66,544	52,203	107,885	90,373
Tax expense (benefit)	23,942	20,161	38,826	34,804
Equity in net earnings of subsidiaries	0	0	0	0
NET INCOME (LOSS)	42,602	32,042	69,059	55,569
REPORTABLE LEGAL ENTITIES | TRG, INC.
Condensed Income Statements, Captions [Line Items]
REVENUES	349,879	297,734	618,461	548,141
EXPENSES	318,181	268,737	568,529	497,607
OTHER (EXPENSE) INCOME	(3,264)	790	(2,838)	1,485
Income before taxes	28,434	29,787	47,094	52,019
Tax expense (benefit)	10,231	11,505	16,949	20,033
Equity in net earnings of subsidiaries	24,399	13,760	38,914	23,583
NET INCOME (LOSS)	42,602	32,042	69,059	55,569
REPORTABLE LEGAL ENTITIES | GUARANTOR SUBSIDIARIES
Condensed Income Statements, Captions [Line Items]
REVENUES	301,285	280,874	549,285	521,108
EXPENSES	272,251	256,838	502,947	479,917
OTHER (EXPENSE) INCOME	299	289	554	483
Income before taxes	29,333	24,325	46,892	41,674
Tax expense (benefit)	10,553	9,394	16,875	16,050
Equity in net earnings of subsidiaries	0	0	0	0
NET INCOME (LOSS)	18,780	14,931	30,017	25,624
REPORTABLE LEGAL ENTITIES | NON-GUARANTOR SUBSIDIARIES
Condensed Income Statements, Captions [Line Items]
REVENUES	16,589	11,145	28,989	19,343
EXPENSES	7,895	13,079	15,229	22,688
OTHER (EXPENSE) INCOME	83	25	139	25
Income before taxes	8,777	(1,909)	13,899	(3,320)
Tax expense (benefit)	3,158	(738)	5,002	(1,279)
Equity in net earnings of subsidiaries	0	0	0	0
NET INCOME (LOSS)	5,619	(1,171)	8,897	(2,041)
GUARANTOR ELIMINATIONS
Condensed Income Statements, Captions [Line Items]
REVENUES	(14,118)	(12,364)	(25,701)	(21,520)
EXPENSES	(14,118)	(12,364)	(25,701)	(21,520)
OTHER (EXPENSE) INCOME	0	0	0	0
Income before taxes	0	0	0	0
Tax expense (benefit)	0	0	0	0
Equity in net earnings of subsidiaries	(24,399)	(13,760)	(38,914)	(23,583)
NET INCOME (LOSS)	$ (24,399)	$ (13,760)	$ (38,914)	$ (23,583)