|
Derivative financial instruments and fair value measurements (Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis ) (Details) (USD $)
In Thousands, unless otherwise specified |
12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Dec. 28, 2013
|
Dec. 29, 2012
|
Dec. 31, 2011
|
Feb. 10, 2012
Babco [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 1 [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 1 [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 1 [Member]
Interest Rate Swap [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 1 [Member]
Interest Rate Swap [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 1 [Member]
Foreign Exchange Forward [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 1 [Member]
Foreign Exchange Forward [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 1 [Member]
Other Current [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 1 [Member]
Other Current [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 1 [Member]
Other Long Term [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 1 [Member]
Other Long Term [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 2 [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 2 [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 2 [Member]
Interest Rate Swap [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 2 [Member]
Interest Rate Swap [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 2 [Member]
Foreign Exchange Forward [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 2 [Member]
Foreign Exchange Forward [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 2 [Member]
Other Current [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 2 [Member]
Other Current [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 2 [Member]
Other Long Term [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 2 [Member]
Other Long Term [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 3 [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 3 [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 3 [Member]
Interest Rate Swap [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 3 [Member]
Interest Rate Swap [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 3 [Member]
Foreign Exchange Forward [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 3 [Member]
Foreign Exchange Forward [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 3 [Member]
Other Current [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 3 [Member]
Other Current [Member]
|
Dec. 28, 2013
Fair Value, Inputs, Level 3 [Member]
Other Long Term [Member]
|
Dec. 29, 2012
Fair Value, Inputs, Level 3 [Member]
Other Long Term [Member]
|
Dec. 28, 2013
Fair Value, Measurements, Recurring [Member]
|
Dec. 29, 2012
Fair Value, Measurements, Recurring [Member]
|
Dec. 28, 2013
Fair Value, Measurements, Recurring [Member]
Interest Rate Swap [Member]
|
Dec. 29, 2012
Fair Value, Measurements, Recurring [Member]
Interest Rate Swap [Member]
|
Dec. 28, 2013
Fair Value, Measurements, Recurring [Member]
Foreign Exchange Forward [Member]
|
Dec. 29, 2012
Fair Value, Measurements, Recurring [Member]
Foreign Exchange Forward [Member]
|
Dec. 28, 2013
Fair Value, Measurements, Recurring [Member]
Other Current [Member]
|
Dec. 29, 2012
Fair Value, Measurements, Recurring [Member]
Other Current [Member]
|
Dec. 28, 2013
Fair Value, Measurements, Recurring [Member]
Other Long Term [Member]
|
Dec. 29, 2012
Fair Value, Measurements, Recurring [Member]
Other Long Term [Member]
|
|
| Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] | ||||||||||||||||||||||||||||||||||||||||||||
| Unrealized Derivative Gain | $ 284 | $ 690 | $ 0 | $ 0 | $ 1,175 | $ 2,494 | $ 29 | $ 93 | $ 0 | $ 0 | $ 0 | $ 0 | $ 1,459 | $ 3,184 | $ 29 | $ 93 | ||||||||||||||||||||||||||||
| Unrealized Derivative Loss | 0 | 0 | 0 | 0 | (1,841) | (1,623) | (12) | (43) | 0 | 0 | 0 | 0 | (1,841) | (1,623) | (12) | (43) | ||||||||||||||||||||||||||||
| Inventories Carried At Market | 0 | 0 | 11,836 | 15,426 | 0 | 0 | 11,836 | 15,426 | ||||||||||||||||||||||||||||||||||||
| Unrealized Gain (Loss) on Derivatives | (1,976) | 695 | (839) | 0 | 0 | 0 | 0 | (311) | (396) | (371) | (327) | 0 | 0 | 0 | 0 | (311) | (396) | (371) | (327) | |||||||||||||||||||||||||
| Business Acquisition, Contingent Consideration, at Fair Value | (615) | 0 | 0 | 0 | 0 | 2,671 | 4,398 | 2,671 | 4,398 | |||||||||||||||||||||||||||||||||||
| Business Acquisition Contingent Consideration Payments | $ (1,267) | |||||||||||||||||||||||||||||||||||||||||||