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Fair Value Measurements (Tables) | 12 Months Ended
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Dec. 31, 2017
Fair Value Disclosures [Abstract] |
Summary of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis | Financial assets and liabilities measured at fair value on a recurring basis are summarized below (in thousands):
| Fair Value Measurements as of December 31, 2017
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets |  |  |  |  |  |  |
Foreign currency exchange contracts | $ | — |  |  | $ | 1,912 |  |  | $ | — |  |  | $ | 1,912 |
Interest rate cap contracts | — |  |  | 3,922 |  |  | — |  |  | 3,922 |
Liabilities |  |  |  |  |  |  |
Foreign currency exchange contracts | — |  |  | (1,110 | ) |  | — |  |  | (1,110 | )
Interest rate swap agreements | — |  |  | (7 | ) |  | — |  |  | (7 | )
Contingent consideration | — |  |  | — |  |  | (10,612 | ) |  | (10,612 | )
Temporary Equity |  |  |  |  |  |  |
Redeemable noncontrolling interest | — |  |  | — |  |  | (151,978 | ) |  | (151,978 | )
| Fair Value Measurements as of December 31, 2016
| Level 1 |  | Level 2 |  | Level 3 |  | Total
Assets |  |  |  |  |  |  |
Foreign currency exchange contracts | $ | — |  |  | $ | 1,122 |  |  | $ | — |  |  | $ | 1,122 |
Liabilities |  |  |  |  |  |  |
Foreign currency exchange contracts | — |  |  | (1,360 | ) |  | — |  |  | (1,360 | )
Interest rate swap agreements | — |  |  | (131 | ) |  | — |  |  | (131 | )
Contingent consideration | — |  |  | — |  |  | (2,531 | ) |  | (2,531 | )
Temporary Equity |  |  |  |  |  |  |
Redeemable noncontrolling interest | — |  |  | — |  |  | (45,755 | ) |  | (45,755 | )
Schedule of Fair Value of Contingent Consideration | The following table provides a roll-forward of the fair value of contingent consideration for the years ended December 31, 2017, 2016 and 2015 (in thousands):
| Amount
Balance at December 31, 2014 | $ | — |
Issuance of contingent consideration in connection with acquisition | 10,587 |
Change in fair value of contingent consideration | 132 |
Effect of foreign currency translation | (316 | )
Balance at December 31, 2015 | 10,403 |
Change in fair value of contingent consideration | (7,602 | )
Effect of foreign currency translation | (270 | )
Balance at December 31, 2016 | 2,531 |
Issuance of contingent consideration in connection with acquisition | 10,808 |
Change in fair value of contingent consideration | (2,465 | )
Payment of contingent consideration | (781 | )
Effect of foreign currency translation | 519 |
Balance at December 31, 2017 | $ | 10,612 |
Change in Redeemable Noncontrolling Interests | The components of the change in the redeemable noncontrolling interest for the years ended December 31, 2017, 2016 and 2015 are presented in the following table (in thousands):
| Amount
Balance at December 31, 2014 | $ | 28,885 |
Addition to redeemable noncontrolling interest | 9,409 |
Net income attributable to redeemable noncontrolling interest | 1,371 |
Adjustment of the redeemable noncontrolling interest to fair value | 2,349 |
Effect of foreign currency translation attributable to redeemable noncontrolling interest | (3,390 | )
Balance at December 31, 2015 | 38,624 |
Addition to redeemable noncontrolling interest | 826 |
Redemption of redeemable noncontrolling interest | (3,562 | )
Net loss attributable to redeemable noncontrolling interest | (47,831 | )
Adjustment of the redeemable noncontrolling interest to fair value | 74,194 |
Effect of foreign currency translation attributable to redeemable noncontrolling interest | (16,496 | )
Balance at December 31, 2016 | 45,755 |
Addition to redeemable noncontrolling interest | 277 |
Net loss attributable to redeemable noncontrolling interest | (4,905 | )
Adjustment of the redeemable noncontrolling interest to fair value | 108,296 |
Effect of foreign currency translation attributable to redeemable noncontrolling interest | 2,555 |
Balance at December 31, 2017 | $ | 151,978 |

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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of redeemable noncontrolling interest (as defined) included in the statement of financial position as either a liability or temporary equity. As of the date of the statement of financial position, such redeemable noncontrolling interest is currently redeemable, as defined, for cash or other assets of the entity at (1) at a fixed or determinable price on a fixed or determinable date, (2) at the option of the holder of the noncontrolling interest, or (3) upon occurrence of an event that is not solely within the control of the entity. + References No definition available. + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19190-110258 + Details
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