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Debt - Additional Information (Details)	12 Months Ended
Debt - Additional Information (Details)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Jun. 02, 2017 USD ($)
Debt Instrument [Line Items]
Deferred financing costs	$ 1,000,000.0	$ 0	$ 200,000
Proceeds from early termination of interest rate swap	200,000
Interest rate swap, fair value	900,000	2,000,000.0
Aggregate maturities of total borrowings due, year one	200,000
Aggregate maturities of total borrowings due, year two	200,000
Aggregate maturities of total borrowings due, year three	100,000
Aggregate maturities of total borrowings due, year four	100,000
Aggregate maturities of total borrowings due, year five	$ 219,900,000
Weighted average interest rate on short-term borrowings	2.70%
Interest paid	$ 7,800,000	8,700,000	6,600,000
Unrealized (loss) gain on interest rate cash flow hedges, pretax, accumulated other comprehensive income (loss)	(1,000,000.0)	400,000	$ 1,600,000
Ineffectiveness recorded	$ 0	$ 0
Interest Rate Swap
Debt Instrument [Line Items]
Line of credit facility, amount outstanding				$ 150,000,000.0
2019 Credit Agreement \| Minimum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage	0.10%
2019 Credit Agreement \| Maximum
Debt Instrument [Line Items]
Line of credit facility, unused capacity, commitment fee percentage	0.25%
2019 Credit Agreement \| London Interbank Offered Rate (LIBOR) \| Minimum
Debt Instrument [Line Items]
Base rate borrowings margin ranges	1.00%
2019 Credit Agreement \| London Interbank Offered Rate (LIBOR) \| Maximum
Debt Instrument [Line Items]
Base rate borrowings margin ranges	1.75%
2019 Credit Agreement \| Base Rate \| Minimum
Debt Instrument [Line Items]
Base rate borrowings margin ranges	0.00%
2019 Credit Agreement \| Base Rate \| Maximum
Debt Instrument [Line Items]
Base rate borrowings margin ranges	0.75%
2019 Credit Agreement \| Letter of Credit
Debt Instrument [Line Items]
Secured credit facility	$ 75,000,000
Credit facility outstanding amount	11,200,000
2019 Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Secured credit facility	500,000,000
Secured credit facility, available increment	$ 250,000,000
Guaranteed percentage of outstanding voting capital stock	65.00%
Line of credit facility, covenant terms, leverage ratio maximum	3.25
Line of credit facility, amount outstanding	$ 219,900,000
Credit facility outstanding amount	268,900,000
2019 Credit Agreement \| Revolving Credit Facility \| Non-US
Debt Instrument [Line Items]
Secured credit facility	200,000,000
2019 Credit Agreement \| Revolving Credit Facility \| Minimum
Debt Instrument [Line Items]
Line of credit facility, covenants holiday, permitted acquisition consideration	75,000,000
2019 Credit Agreement \| Revolving Credit Facility \| Maximum
Debt Instrument [Line Items]
Line of credit facility, covenants, permitted dividends and stock repurchases	35,000,000
Line of credit facility, covenants, permitted other incremental cash payments	50,000,000
Amended 2016 Credit Agreement \| Revolving Credit Facility
Debt Instrument [Line Items]
Secured credit facility				$ 400,000,000
Interest Rate Swap
Debt Instrument [Line Items]
Line of credit facility, amount outstanding	75,000,000.0
Interest rate swap, notional amount	$ 75,000,000.0