ACCRUED COMPENSATION EXPENSE AND LONG-TERM LIABILITIES Table (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
Accrued compensation expense
NuStar Energy restricted units, current	$ 6,224	$ 10,376
Pension liabilities, current	2,333	137
Other postretirement benefit plan liabilities, current	141	243
Other employee-related liabilities, current	3,620	4,212
Accrued compensation expense	12,318	14,968
Long-term liabilities
NuStar Energy restricted units, noncurrent	0	0
Pension liabilities, noncurrent	9,726	44,640
Other postretirement benefit plan liabilities, noncurrent	7,013	20,719
Other employee-related liabilities, noncurrent	1,568	1,737
Long-term liabilities	$ 18,307	$ 67,096