XML 49 R80.htm IDEA: XBRL DOCUMENT

Commitments (Narrative) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Supply Commitment [Line Items]
Total lease and rental expenses under non-cancelable operating leases	$ 3.2	$ 2.4	$ 2.6
Electricity And Natural Gas [Member]
Supply Commitment [Line Items]
Total obligation under contracts	$ 5.4

Amount of required minimum rental payments for leases having an initial or remaining non-cancelable letter-terms in excess of one year.

+ References+ Details

- Definition

Amount of the recorded obligation to transfer funds in the future for fixed or minimum amounts or quantities of goods or services at fixed or minimum prices (for example, as in take-or-pay contracts or throughput contracts).

+ References+ Details