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Accumulated Other Comprehensive Loss - Components of Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Balance |  | $ 746,961 |  | $ 714,551 | $ 660,417
Total current period other comprehensive income (loss) |  | 3,071 |  | (1,962) | 407
Balance |  | 803,470 |  | 746,961 | 714,551
Foreign Currency Translation Adjustments |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Balance |  | (7,210) |  | (10,995) | (14,168)
Other comprehensive income (loss) before reclassifications |  | (1,676) |  | 4,141 | 2,338
Amounts reclassified from accumulated other comprehensive (loss) income |  | 0 | [1] | 0 | 0
Effect of taxes | [2] | 127 |  | (356) | 835
Total current period other comprehensive income (loss) |  | (1,549) |  | 3,785 | 3,173
Balance |  | (8,759) |  | (7,210) | (10,995)
Gain on Sale of Interest Rate Hedge Agreement |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Balance | [3] | 1,096 |  | 1,634 | 2,164
Other comprehensive income (loss) before reclassifications | [3] | 0 |  | 0 | 0
Amounts reclassified from accumulated other comprehensive (loss) income | [3] | (720) | [1] | (720) | (720)
Effect of taxes | [2],[3] | 193 |  | 182 | 190
Total current period other comprehensive income (loss) | [3] | (527) |  | (538) | (530)
Balance | [3] | 569 |  | 1,096 | 1,634
Changes in Fair Value of Interest Rate Hedge Agreements |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Balance | [4],[5] | (7,992) |  | (2,783) | (547)
Other comprehensive income (loss) before reclassifications | [4],[5] | 3,285 |  | (9,867) | (3,362)
Amounts reclassified from accumulated other comprehensive (loss) income | [4],[5] | 3,728 | [1] | 2,751 | 333
Effect of taxes | [2],[4],[5] | (1,866) |  | 1,907 | 793
Total current period other comprehensive income (loss) | [4],[5] | 5,147 |  | (5,209) | (2,236)
Balance | [4],[5] | (2,845) |  | (7,992) | (2,783)
Accumulated Other Comprehensive Loss |  |  |  |  |
Accumulated Other Comprehensive Income Loss [Line Items] |  |  |  |  |
Balance |  | (14,106) |  | (12,144) | (12,551)
Other comprehensive income (loss) before reclassifications |  | 1,609 |  | (5,726) | (1,024)
Amounts reclassified from accumulated other comprehensive (loss) income |  | 3,008 | [1] | 2,031 | (387)
Effect of taxes | [2] | (1,546) |  | 1,733 | 1,818
Total current period other comprehensive income (loss) |  | 3,071 |  | (1,962) | 407
Balance |  | $ (11,035) |  | $ (14,106) | $ (12,144)
[1] | The Company expects to reclassify $0.7 million related to the Gain on Sale of Interest Rate Hedge Agreement, and $3.0 million losses related to the Change in Fair Value of Interest Rate Hedge Agreement from accumulated other comprehensive loss into earnings during the next 12 months.
[2] | The Company’s effective tax rate for the years ended December 31, 2021, 2020, and 2019 was 28.9%, 26.4%, and 23.6%, respectively.
[3] | Represents the fair value of an interest rate hedge agreement, designated as a cash flow hedge, which was sold on December 1, 2016. The fair value of the interest rate hedge agreement was recorded in other comprehensive income, net of tax, and will be reclassified to earnings when earnings are impacted by the hedged items, as interest payments are made on the Credit Facility from January 31, 2018 to January 31, 2023.
[4] | Represents the change in fair value of interest rate hedge agreements designated as a cash flow hedges. The fair value of the interest rate hedge agreements was recorded in other comprehensive income and will be reclassified to earnings when earnings are impacted by the hedged items, as interest payments are made on the Credit Facility from August 31, 2018 to February 28, 2025. See additional details of the hedge agreements in Note 12 - Derivative Instruments and Hedging Activities.
[5] | The fair value of the interest rate hedge agreements is included in other current and other long-term liabilities on the consolidated balance sheets.

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- Definition Amount after tax, before reclassification adjustments, of other comprehensive income (loss), attributable to parent. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=124507222&loc=d3e1436-108581 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669686-108580 + Details
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- Definition Total of all stockholders' equity (deficit) items, net of receivables from officers, directors, owners, and affiliates of the entity which are attributable to the parent. The amount of the economic entity's stockholders' equity attributable to the parent excludes the amount of stockholders' equity which is allocable to that ownership interest in subsidiary equity which is not attributable to the parent (noncontrolling interest, minority interest). This excludes temporary equity and is sometimes called permanent equity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(g)(1)(ii)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 852 -SubTopic 10 -Section 55 -Paragraph 10 -URI http://asc.fasb.org/extlink&oid=84165509&loc=d3e56426-112766 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 4.E) -URI http://asc.fasb.org/extlink&oid=122038336&loc=d3e74512-122707 Reference 4: 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(31)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 5: 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(29)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 6: 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(30)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 Reference 7: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 825 -SubTopic 10 -Section 50 -Paragraph 28 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612 Reference 8: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 323 -SubTopic 10 -Section 50 -Paragraph 3 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571 + Details
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