Stockholders' Equity - Common and Preferred Stock (Details)														12 Months Ended
	Jan. 02, 2018 USD ($)	Oct. 02, 2017 USD ($)	Jul. 03, 2017 USD ($)	Apr. 03, 2017 USD ($)	Jan. 03, 2017 USD ($)	Oct. 03, 2016 USD ($)	Jul. 01, 2016 USD ($)	Apr. 01, 2016 USD ($)	Mar. 02, 2016 USD ($)	Feb. 17, 2016 USD ($) shares	Jan. 04, 2016 USD ($) shares	Feb. 06, 2015 USD ($) shares	Jan. 05, 2015 USD ($)	Dec. 31, 2017 USD ($) $ / shares shares	Dec. 31, 2016 USD ($) vote_per_stock $ / shares shares	Dec. 31, 2015 USD ($)	Nov. 01, 2016 shares	Jan. 02, 2015 shares
Class of Stock [Line Items]
Capital stock, shares authorized (in shares)																	155,000,000
Common Stock, Shares Authorized														150,000,000	150,000,000		150,000,000
Preferred Stock, Shares Authorized																	5,000,000
Proceeds from rights offering, net of expenses | $										$ 286,000,000.0				$ 0	$ 286,003,000	$ 49,528,000
Series B
Class of Stock [Line Items]
Preferred Stock, Shares Authorized														5,000,000	5,000,000
Voting rights per stock (vote per stock) | vote_per_stock															0.054
Shares convertible for each stock (in shares)															0.054
Preferred stock, per share liquidation value (usd per share) | $ / shares														$ 29	$ 29
Dividends declared per share (usd per share) | $ / shares															$ 2.90
Preferred stock, shares outstanding (in shares)														44,258	44,258
Dividends, Preferred Stock, Cash | $		$ 32,087	$ 32,087	$ 32,087	$ 32,087	$ 32,087	$ 32,087	$ 32,087	$ 167,000						$ 167,000
Dividends, Preferred Stock, Multiplier															1.3
Common Stock
Class of Stock [Line Items]
Price per share on issuable shares (usd per share) | $ / shares															$ 3.77
Number of trading dates used to calculated price per share															20 days
Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Common Stock, Shares Authorized											20,138,888
Proceeds from Issuance of Private Placement | $										$ 290,000,000		$ 49,500,000
Value of subscription rights to be exercised within 10 days of commencement | $											$ 30,000,000
Value of subscription rights to be exercised, maximum | $											290,000,000		$ 50,000,000
Sale of stock, commitment fee | $											$ 1,500,000		250,000
Sale of stock, commitment fee, percent											0.50%
Sale of stock, expenses reimbursed (not exceeding) | $													$ 40,000
Common Stock | Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued										20,138,888
Common Stock | Non-Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued												1,408,451
Agreement To Exercise Additional Rights, Aggregate Amount Threshold | $												$ 50,000,000
Basic Subscription Rights, Exercise Period After Grant													10 days
Common Stock | Basic Subscription Rights [Member] | Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued										176,086
Common Stock | Basic Subscription Rights [Member] | Non-Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued												10,658
Common Stock | Over Subscription Rights [Member] | Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued										13,136,817
Kien Huat Realty Limited [Member] | Common Stock | Non-Transferable Subscription Rights [Member]
Class of Stock [Line Items]
Shares, Issued												864,360
Kien Huat Realty Limited [Member] | Common Stock | Standby Purchase Agreement [Member]
Class of Stock [Line Items]
Shares, Issued										6,825,985		533,433
Kien Huat Realty Limited [Member] | Expense Reimbursement [Member]
Class of Stock [Line Items]
Related Party Transaction, Amounts of Transaction | $										$ 50,000
Kien Huat Montreign Loan [Member] | Montreign Operating [Member]
Class of Stock [Line Items]
Shares, Issued																		1,408,451
Subsequent Event | Series B
Class of Stock [Line Items]
Dividends, Preferred Stock, Cash | $	$ 32,087