|
Long-Term Debt (Debt Covenants And Credit Facility) (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Debt Instrument [Line Items] | ||||
| Quarterly dividend, per share | $ 0.0738 | $ 0.2746 | $ 0.2420 | $ 0.2200 |
| Investment in joint ventures | $ 200,000 | |||
|
Suzhou Huasu Plastics Co. Ltd. [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Investment in joint ventures | 55,000 | |||
|
Debt Covenant [Member] | Senior Notes [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Maximum percentage of income distribution | 50.00% | |||
| Maximum distribution percentage of specified net cash proceeds | 100.00% | |||
|
Minimum [Member] | Senior Secured Revolving Credit Facility [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Fixed charge coverage ratio for debt covenant | 1.0 | |||
|
Minimum [Member] | Debt Covenant [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Fixed charge coverage ratio | 2.0 | |||
|
Minimum [Member] | Debt Covenant [Member] | Senior Secured Revolving Credit Facility [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Fixed charge coverage ratio for debt covenant | 1.0 | |||
|
Maximum [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Maximum unrestricted distributions allowable | 100,000 | |||
|
Maximum [Member] | Debt Covenant [Member] | Senior Notes [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Limitation exception for the payment of quarterly dividend | 0.20 | |||
|
25% Of Total Bank Commitments [Member] | Minimum [Member] | Senior Secured Revolving Credit Facility [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Borrowing availability of bank commitments, minimum | 100,000 | 100,000 | ||
| Percentage of borrowing availability of bank commitments | 25.00% | 25.00% | ||
|
17.5% Of Total Bank Commitments [Member] | Senior Secured Revolving Credit Facility [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Maximum distributions allowable | 25,000 | |||
|
17.5% Of Total Bank Commitments [Member] | Minimum [Member] | Senior Secured Revolving Credit Facility [Member]
|
||||
| Debt Instrument [Line Items] | ||||
| Borrowing availability of bank commitments, minimum | $ 70,000 | $ 70,000 | ||
| Percentage of borrowing availability of bank commitments | 17.50% | 17.50% | ||