Quarterly report pursuant to Section 13 or 15(d)

Financing Arrangements - Maturities of Long-term Debt (Details)

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Financing Arrangements - Maturities of Long-term Debt (Details)
$ in Thousands
Jun. 30, 2017
USD ($)
Long-term Debt, Fiscal Year Maturity [Abstract]  
2017 (remaining six months) $ 7,421
2018 13,243
2019 22,286
2020 25,225
2021 25,042
Thereafter 539,253
Long-term debt $ 632,470