ACCOUNTS PAYABLE AND ACCRUED LIABILITIES (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
ACCOUNTS PAYABLE AND ACCRUED LIABILITIES
Accounts payable, principally trade	$ 150,122	$ 136,941
Accrued employee compensation costs	126,845	120,694
Customer deposits and other unearned income	37,084	42,148
Other accrued liabilities	89,000	80,886
Total	$ 403,051	$ 380,669