Derivative Instruments & Hedging Activities Outstanding Derivative Contracts (Details) € in Thousands, ¥ in Thousands, ¥ in Thousands, R$ in Thousands, BTU in Thousands, $ in Thousands, $ in Thousands, $ in Thousands	Jun. 30, 2019 USD ($) BTU	Jun. 30, 2019 EUR (€) BTU	Jun. 30, 2019 CNY (¥) BTU	Jun. 30, 2019 BRL (R$) BTU	Jun. 30, 2019 JPY (¥) BTU	Jun. 30, 2019 CAD ($) BTU	Jun. 30, 2019 AUD ($) BTU	Jul. 01, 2018 USD ($) BTU	Jul. 01, 2018 EUR (€) BTU	Jul. 01, 2018 CNY (¥) BTU	Jul. 01, 2018 BRL (R$) BTU	Jul. 01, 2018 JPY (¥) BTU	Jul. 01, 2018 CAD ($) BTU	Jul. 01, 2018 AUD ($) BTU
Interest Rate Contracts [Member]
Derivative [Line Items]
Derivative, Notional Amount	$ 230,000							$ 110,000
Australian Dollar, Sell [Member]
Derivative [Line Items]
Derivative, Notional Amount							$ 17,611							$ 35,833
Brazilian Real, Buy [Member] [Domain]
Derivative [Line Items]
Derivative, Notional Amount				R$ 13,436							R$ 28,822			$ 28,822
Canadian Dollar, Sell [Member]
Derivative [Line Items]
Derivative, Notional Amount						$ 14,610							$ 14,430
Chinese Renminbi, Buy [Member] [Domain]
Derivative [Line Items]
Derivative, Notional Amount			¥ 70,555							¥ 62,209		¥ 62,209
Euro, Sell [Member]
Derivative [Line Items]
Derivative, Notional Amount | €		€ 2,750							€ 32,592
Japanese Yen, Buy [Member]
Derivative [Line Items]
Derivative, Notional Amount | ¥					¥ 0							¥ 587,500
Natural Gas [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | BTU	7,627	7,627	7,627	7,627	7,627	7,627	7,627	10,553	10,553	10,553	10,553	10,553	10,553	10,553