Debt and Other Borrowings - Components of Debt (Details) - USD ($)	Sep. 30, 2019	Dec. 31, 2018
Debt Instrument [Line Items]
Total debt	$ 348,900,000	$ 356,700,000
Less: debt payable within one year	2,800,000	10,600,000
Debt payable after one year	$ 346,100,000	$ 346,100,000
Weighted average interest rates on total debt obligations	5.50%	5.70%
Finance lease obligations	$ 1,100,000	$ 1,700,000
Senior Notes \| 5.5% Senior Notes due in 2026
Debt Instrument [Line Items]
Total debt	$ 346,000,000.0	345,600,000
Stated interest rate	5.50%
Unamortized debt issuance cost	$ 4,000,000	4,400,000
Line of credit \| Revolving credit facility
Debt Instrument [Line Items]
Total debt	0	0
Unamortized debt issuance cost	3,300,000	4,100,000
Aggregate available principal amount	350,000,000.0	350,000,000.0
Other borrowings
Debt Instrument [Line Items]
Total debt	2,900,000	11,100,000
Lines of credit and other borrowings
Debt Instrument [Line Items]
Total debt	$ 1,800,000	$ 9,400,000

Contractual interest rate for funds borrowed, under the debt agreement.

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Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs.

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Present value of lessee's discounted obligation for lease payments from finance lease.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt, classified as current. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Amount after unamortized (discount) premium and debt issuance costs of long-term debt classified as noncurrent and excluding amounts to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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Weighted average interest rate of long-term debt outstanding calculated at point in time.

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