Notes Payable and Long-Term Debt (Details) (USD $)
|
12 Months Ended | 3 Months Ended | ||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
Dec. 31, 2013
Notes payable to bank
|
Dec. 31, 2012
Notes payable to bank
|
Dec. 31, 2013
Committed bank line
|
Feb. 23, 2013
Committed bank line
|
Dec. 31, 2013
Uncommitted bank lines
|
Dec. 31, 2013
Uncommitted bank lines
Foreign subsidiaries
|
Dec. 31, 2013
Uncommitted bank lines
Foreign subsidiaries
South African Rand
|
Dec. 31, 2013
Uncommitted bank lines
Foreign subsidiaries
Argentine pesos
|
Dec. 31, 2013
IDRBs
|
Jun. 29, 2013
IDRBs
|
Mar. 30, 2013
IDRBs
|
|
Notes Payable | ||||||||||||||
Notes payable to banks | $ 67,699,000 | $ 28,786,000 | $ 0 | $ 67,699,000 | $ 26,981,000 | $ 24,348,000 | ||||||||
Repayment term | 1 year | |||||||||||||
Maximum capacity | 200,000,000 | 200,000,000 | 209,501,000 | 159,501,000 | ||||||||||
Weighted average interest rate (as a percent) | 13.10% | 7.45% | ||||||||||||
Letters of credit outstanding | 813,000 | 3,980,000 | ||||||||||||
Payments of long-term debt | $ 53,756,000 | $ 43,947,000 | $ 1,476,000 | $ 18,000,000 | $ 10,800,000 | $ 13,000,000 |