Commitments and Contingencies (Details)	1 Months Ended	12 Months Ended
	Dec. 31, 2015 USD ($)	Dec. 31, 2017 USD ($) period company	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)	Mar. 06, 2017 claim
Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract]
2018		$ 9,179,000
2019		2,039,000
2020		1,714,000
2021		1,381,000
2022		1,374,000
Thereafter		20,713,000
Total operating lease future minimum payments		36,400,000
Rent expense		$ 2,869,000	$ 2,613,000	$ 2,042,000
Sublease term		5 years
Notice required from lessee for early termination of lease		180 days
Fee required of lessee for early termination of lease		$ 150,000
Sublease rental income		406,000	369,000	369,000
Operating Leased Assets [Line Items]
Loss Contingency, Pending Claims, Number | claim					2
Unrecorded Unconditional Purchase Obligation [Line Items]
2018		13,502,000
2019		5,336,000
2020		4,633,000
2021		3,485,000
2022		627,000
Thereafter		0
Unconditional purchase obligation		27,583,000
Purchase Obligations
Unrecorded Unconditional Purchase Obligation [Line Items]
2018		11,839,000
2019		4,787,000
2020		4,165,000
2021		3,196,000
2022		49,000
Thereafter		0
Unconditional purchase obligation		24,036,000
Sponsorship Obligations
Unrecorded Unconditional Purchase Obligation [Line Items]
2018		1,663,000
2019		549,000
2020		468,000
2021		289,000
2022		578,000
Thereafter		0
Unconditional purchase obligation		$ 3,547,000
Affiliated entity | Operating lease, Portland, Oregon
Operating Leased Assets [Line Items]
Number of limited liability companies | company		2
Lease payments to lessors		$ 136,000	120,000	120,000
Right to buyout lease facility, minimum		$ 2,000,000.0
Affiliated entity | Operating lease, Portland, Oregon | Headquarters Office Space And Restaurant Facility
Operating Leased Assets [Line Items]
Number of additional lease renewal periods | period		2
Operating lease term		10 years
Affiliated entity | Operating lease, Portland, Oregon | Other Facilities, Land And Equipment
Operating Leased Assets [Line Items]
Operating lease term		5 years
Affiliated entity | Operating lease, Kona, Hawaii
Operating Leased Assets [Line Items]
Number of additional lease renewal periods | period		2
Operating lease term		5 years
Lease payments to lessors		$ 574,000	$ 554,000	$ 524,000
Sublease contracts expire date		Dec. 31, 2020
Percentage of common stock held by lessor		5.00%
Amount paid for right of first refusal	$ 100,000