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Debt - Additional Information (Detail) - USD ($) $ in Thousands |  |  | 12 Months Ended
--- | --- | --- | ---
Aug. 21, 2018 | Feb. 24, 2017 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Debt Instrument [Line Items] |  |  |  |  |
Proceeds from revolving credit facility |  |  | $ 109,000 | $ 67,000 | $ 76,000
Proceeds from term portion of credit agreement |  |  |  | 415,000 |
Credit facility, interest rate description |  |  | Based on the calculation of the applicable consolidated total leverage ratio |  |
Credit facility, interest rate margin above federal fund rate |  |  | 1.00% |  |
Credit facility, interest rate margin above one-month LIBOR rate |  |  | 1.00% |  |
Credit facility, borrowing rate |  |  | 4.27% |  |
Debt Issuance cost |  |  | $ 13,203 | 10,521 |
Debt Issuance cost paid |  |  | $ 7,319 | $ 5,340 | $ 655
Credit Facility maturity date |  |  | Feb. 24, 2022 |  |
Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Unused borrowings |  |  | $ 500,000 |  |
Term Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Term Credit Facility amount outstanding |  |  | 285,000 |  |
Senior Notes [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior notes amount outstanding |  |  | 400,000 |  |
Senior Notes 2026 [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Senior notes amount outstanding | $ 400,000 |  |  |  |
Issue price percentage of senior notes of the principal amount | 100.00% |  |  |  |
Percentage of interest rate on notes | 5.75% |  |  |  |
Senior Notes maturity date | Aug. 15, 2026 |  |  |  |
Debt Issuance cost |  |  | 7,300 |  |
Debt Issuance cost paid |  |  | $ 7,300 |  |
Maturity date of senior notes |  |  | Aug. 15, 2026 |  |
Credit Agreement [Member] | Minimum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facility, interest rate margin above base rate |  |  | 0.25% |  |
Credit facility, interest rate margin above LIBOR rate |  |  | 1.25% |  |
Credit Agreement [Member] | Maximum [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facility, interest rate margin above base rate |  |  | 1.25% |  |
Credit facility, interest rate margin above LIBOR rate |  |  | 2.25% |  |
Credit Agreement [Member] | Revolving Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facilities, maximum borrowing capacity |  | $ 500,000 |  |  |
Credit facilities, maturity |  | 5 years |  |  |
Proceeds from revolving credit facility |  | $ 12,000 |  |  |
Credit Agreement [Member] | Term Credit Facility [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Credit facilities, maximum borrowing capacity |  | $ 415,000 |  |  |
Credit facilities, maturity |  | 5 years |  |  |
Proceeds from term portion of credit agreement |  | $ 415,000 |  |  |
Multi-year License Agreement [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Financed internally-used software |  |  | $ 11,900 |  |
Annual payments due date |  |  | through June 2023 |  |
Other current liabilities |  |  | $ 2,500 |  |
Other non-current liabilities |  |  | 6,900 |  |
Outstanding other Long-term Debt |  |  | $ 9,400 |  |
Parent Company and Domestic Subsidiaries [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage of capital stock pledged as collateral |  |  | 100.00% |  |
Foreign Subsidiaries [Member] |  |  |  |  |
Debt Instrument [Line Items] |  |  |  |  |
Percentage of capital stock pledged as collateral |  |  | 65.00% |  |

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- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Amount, after accumulated amortization, of debt issuance costs. Includes, but is not limited to, legal, accounting, underwriting, printing, and registration costs. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.17) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28555-108399 + Details
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- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 210 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(16)) -URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910 + Details
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