Rendering

Component: (Network and Table)
Network
1107 - Disclosure - Retirement Plans - Summary of Benefits Expected to be Paid for Plan (Detail)
(http://www.alsk.com/taxonomy/role/DisclosureRetirementPlansSummaryOfBenefitsExpectedToBePaidForPlan)
Table(Implied)
Slicers (applies to each fact value in each table cell)
Reporting Entity [Axis]0001089511 (http://www.sec.gov/CIK)
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]Period [Axis]
2016-12-31
Defined Benefit Plan, Expected Future Benefit Payments, Fiscal Year Maturity [Abstract]
 
2017
1,084,000  
2018
1,097,000  
2019
1,085,000  
2020
1,089,000  
2021
1,093,000  
2022-2026
5,264,000