CORPORATE OFFICE RELOCATION (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
Summary of relocation expenses incurred and to be paid in future periods
Balance at the beginning of the period	$ 3,311	$ 7,101
Expenses incurred		689
Amounts paid	(929)	(4,136)
Balance at the end of the period	2,382	3,654
Employee Separation
Summary of relocation expenses incurred and to be paid in future periods
Balance at the beginning of the period	226	1,895
Expenses incurred		(158)
Amounts paid	(124)	(1,468)
Balance at the end of the period	102	269
Other Relocation
Summary of relocation expenses incurred and to be paid in future periods
Expenses incurred		847
Amounts paid		(847)
Lease Termination
Summary of relocation expenses incurred and to be paid in future periods
Balance at the beginning of the period	3,085	5,206
Amounts paid	(805)	(1,821)
Balance at the end of the period	$ 2,280	$ 3,385