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Vested shares will be delivered to the reporting person for the fiscal years ending December 31, 2020, December 31, 2021 and December 31, 2022."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F3","text":"The Restricted Stock Units vest in three equal annual installments beginning December 31, 2020. Vested shares will be delivered to the reporting person for the fiscal years ending December 31, 2020, December 31, 2021 and December 31, 2022."}],"balance_after":28269,"derivative":{"underlying":"Common Stock","underlying_shares":5723},"source":{"system":"sec-edgar","filing":"0001209191-20-001739","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":2,"url":"https://www.sec.gov/Archives/edgar/data/1447706/000120919120001739/doc4.xml","form_type":"4"}},{"id":3318378,"issuer":{"id":6239,"kind":"organization","name":"Spok Holdings, Inc"},"owners":[{"id":24581,"kind":"person","name":"Woods-Keisling Sharon","position":1,"cik":"0001447706","reported_name":"Woods-Keisling Sharon","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Secretary, Treasurer"}}],"security":"Restricted Stock Units","published_at":"2020-01-06T21:07:25.000Z","date":"2020-01-02","kind":"grant","acquired":true,"shares":5724,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"The Restricted Stock Units which if not forfeited, will convert into shares of common stock if specified performance objectives of the Company set forth in the 2020 LTIP are achieved for the year ending December 31, 2022."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F1","text":"The Restricted Stock Units which if not forfeited, will convert into shares of common stock if specified performance objectives of the Company set forth in the 2020 LTIP are achieved for the year ending December 31, 2022."},{"field":"derivative.expiration_date","element":"expirationDate","label":"F1","text":"The Restricted Stock Units which if not forfeited, will convert into shares of common stock if specified performance objectives of the Company set forth in the 2020 LTIP are achieved for the year ending December 31, 2022."}],"balance_after":22546,"derivative":{"underlying":"Common Stock","underlying_shares":5724},"source":{"system":"sec-edgar","filing":"0001209191-20-001739","document":"doc4.xml","document_sequence":1,"table":"derivative","row_type":"transaction","position":1,"url":"https://www.sec.gov/Archives/edgar/data/1447706/000120919120001739/doc4.xml","form_type":"4"}},{"id":3322789,"issuer":{"id":6239,"kind":"organization","name":"Spok Holdings, Inc"},"owners":[{"id":24581,"kind":"person","name":"Woods-Keisling Sharon","position":1,"cik":"0001447706","reported_name":"Woods-Keisling Sharon","relationship":{"director":false,"officer":true,"ten_percent_owner":false,"other":false,"officer_title":"Corporate Secretary, Treasurer"}}],"security":"Restricted Stock Units","published_at":"2020-01-03T21:26:07.000Z","date":"2019-12-31","kind":"exercise","acquired":false,"shares":1649,"price":0,"value":0.0,"ownership":{"direct":true},"footnotes":[{"field":"derivative.exercise_price","element":"conversionOrExercisePrice","label":"F1","text":"Each Restricted Stock Units (\"RSUs\") represents a contingent right to receive one share of the issuer's Common Stock."},{"field":"derivative.exercise_date","element":"exerciseDate","label":"F4","text":"On December 31, 2019, 1,649 RSUs vested.  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