Fair Value Information for Financial Assets and Liabilities , as well as Cost or Amortized Cost (Detail) (USD $) In Thousands	Jun. 30, 2011		Dec. 31, 2010
Current assets:
Cash equivalents (including restricted cash accounts)	$ 23,208		$ 14,370
Marketable securities	23,098
Derivatives	1,031	[1]	1,030	[1]
Non-current assets:
Auction rate securities			3,027	[2]
Current liabilities:
Derivatives	(4,735)	[3]
Assets, Net, Total	42,602		18,427
Cost Or Amortized Cost
Current assets:
Cash equivalents (including restricted cash accounts)	23,208		14,370
Marketable securities	22,889
Non-current assets:
Auction rate securities			4,011	[2]
Current liabilities:
Assets, Net, Total	46,097		18,381
Fair Value, Inputs, Level 1
Current assets:
Cash equivalents (including restricted cash accounts)	23,208		14,370
Marketable securities	23,098
Current liabilities:
Assets, Net, Total	46,306		14,370
Fair Value, Inputs, Level 2
Current assets:
Derivatives	1,031	[1]	1,030	[1]
Current liabilities:
Derivatives	(4,735)	[3]
Assets, Net, Total	(3,704)		1,030
Fair Value, Inputs, Level 3
Non-current assets:
Auction rate securities			3,027	[2]
Current liabilities:
Assets, Net, Total			$ 3,027

[1] Amounts relating to derivatives which represent currency forward contracts which are valued primarily based on observable inputs, including forward and spot prices for currencies, and are included within "receivables - other" in the balance sheet with the corresponding gain or loss being recognized within "foreign currency translation and transaction gains (losses)" in the statement of operations and comprehensive income (loss).

[2] Included in the consolidated balance sheets as follows: December 31, 2010 (Dollars in thousands) Long-term marketable securities $ 1,287 Long-term restricted cash, cash equivalents and marketable securities 1,740 $ 3,027

[3] Amounts relating to derivatives which represent interest rate lock transactions which are valued primarily based on observable inputs, including 10-year U.S. Treasury interest rates, and are included within "accounts payable and accrued expenses" in the balance sheet with the corresponding gain or loss being recognized within "interest expense, net" in the statement of operations and comprehensive income (loss). On July 12 and 13, 2011, the Company paid an aggregate amount of $5,328,000 in respect of two interest rate lock transactions it entered into in February 25, 2011. The Company will recognize a loss of $1,633,000 in respect of such transactions in the third quarter of 2011.