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Long-Term Debt and Other Borrowings (Details) |  |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  | 12 Months Ended |  |  |  |  |  |  |
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Dec. 31, 2013 USD ($) | Dec. 31, 2012 USD ($) | Dec. 31, 2013 Domestic Line of Credit [Member] USD ($) | Dec. 31, 2012 Domestic Line of Credit [Member] USD ($) | Dec. 31, 2013 Senior Notes at 5.90% [Member] USD ($) | Dec. 31, 2012 Senior Notes at 5.90% [Member] USD ($) | Dec. 31, 2013 Senior Notes at 6.30% [Member] USD ($) | Dec. 31, 2012 Senior Notes at 6.30% [Member] USD ($) | Dec. 31, 2013 Senior Notes at 6.56% [Member] USD ($) | Dec. 31, 2012 Senior Notes at 6.56% [Member] USD ($) | Dec. 31, 2013 Senior Notes at 5.09% [Member] USD ($) | Dec. 31, 2012 Senior Notes at 5.09% [Member] USD ($) | Dec. 31, 2013 Senior Notes at 5.67% [Member] USD ($) | Dec. 31, 2012 Senior Notes at 5.67% [Member] USD ($) | Dec. 31, 2013 Senior Notes at 4.00% [Member] USD ($) | Dec. 31, 2012 Senior Notes at 4.00% [Member] USD ($) | Dec. 31, 2013 Partnership Line of Credit [Member] USD ($) | Feb. 28, 2014 Partnership Line of Credit [Member] USD ($) | May 14, 2013 Partnership Line of Credit [Member] USD ($) | Dec. 31, 2012 Partnership Line of Credit [Member] USD ($) | Dec. 31, 2013 European Line of Creidt [Member] USD ($) | Dec. 31, 2013 European Line of Creidt [Member] EUR (€) | Dec. 31, 2012 European Line of Creidt [Member] USD ($) | Dec. 31, 2013 Other Debt [Member] USD ($) | Dec. 31, 2012 Other Debt [Member] USD ($)
Debt Instrument [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Senior Note, stated percentage rate |  |  |  |  | 5.90% |  | 6.30% |  | 6.56% |  | 5.09% |  | 5.67% |  | 4.00% |  |  |  |  |  |  |  |  |  |
Maturity date |  |  | Oct. 29, 2015 |  | Apr. 30, 2016 |  | Apr. 30, 2013 |  | Apr. 30, 2015 |  | Dec. 15, 2017 |  | Dec. 15, 2020 |  | Apr. 29, 2020 |  | Oct. 15, 2017 |  |  |  |  |  |  |  |
Long-term debt | $ 387,816,000 | $ 366,709,000 | $ 52,768,000 | $ 51,218,000 | $ 90,000,000 | $ 90,000,000 | $ 0 | $ 35,000,000 | $ 90,000,000 | $ 90,000,000 | $ 65,000,000 | $ 65,000,000 | $ 25,000,000 | $ 25,000,000 | $ 35,000,000 | $ 0 |  |  |  | $ 10,050,000 | $ 0 |  | $ 0 | $ 89,000 | $ 441,000
Current portion of long-term debt | (89,000) | (35,441,000) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Total long-term debt | 387,727,000 | 331,268,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Current borrowing capacity |  |  | 278,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 67,400,000 |  | 40,000,000 |  | 6.9 | 5,000,000 |  |  |
Borrowing capacity prior to amendment |  |  | 300,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |  |  |  |
Increased borrowing capacity available |  |  | 150,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum borrowing capacity |  |  | 428,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 100,000,000 |  |  |  |  |  |  |  |
Current amount outstanding |  |  | 52,800,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 29,959,000 | 30,000,000 |  |  |  |  |  |  |
Net availability |  |  | 215,700,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 37,000,000 |  |  |  |  |  |  |  |
Interest rate description |  |  | British Bankers Association LIBOR rate plus 1.5% to 2.5% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Weighted average interest rate |  |  | 2.40% |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.5625% |  |  |  |  |  |  |  |
Sublimit applicable to letters of credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  | 5,000,000 |  |  |  |  |  |
Uncommitted expansion feature |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,000,000 |  | 20,000,000 |  |  |  |  |  |
Covenant description |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20.0 |  | 4.0 to 1.0 |  |  |  |  |  |  |  |
Minimum interest rate premium |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.25% |  | 2.25% |  | 0.75% | 0.75% |  |  |
Commitment fee percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.375% |  |  |  |  |  |  |  |
Maximum interest rate premium |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.50% |  |  |  |  |  |  |  |
Limitation on percentage of foreign subsidiaries |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 65.00% |  |  |  |  |  |  |  |
Commitment fee, maximum |  |  | 0.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Commitment fee, minimum |  |  | 0.225% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Outstanding letters of credit and guarantees |  |  | 9,500,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Scheduled Maturities Detail [Table] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2014 | 89,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2015 | 172,727,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2016 | 90,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2017 | 65,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
2018 | 0 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Thereafter | 60,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Long-term debt | $ 387,816,000 | $ 366,709,000 | $ 52,768,000 | $ 51,218,000 | $ 90,000,000 | $ 90,000,000 | $ 0 | $ 35,000,000 | $ 90,000,000 | $ 90,000,000 | $ 65,000,000 | $ 65,000,000 | $ 25,000,000 | $ 25,000,000 | $ 35,000,000 | $ 0 |  |  |  | $ 10,050,000 | $ 0 |  | $ 0 | $ 89,000 | $ 441,000

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