Shareholders' Equity - Additional Information (Detail)						12 Months Ended
	Mar. 29, 2017 $ / shares shares	Aug. 08, 2016 shares	Jul. 25, 2016 shares	Jul. 11, 2016 $ / shares shares	Mar. 12, 2015	Jan. 01, 2019 USD ($) vote $ / shares shares	Jan. 02, 2018 USD ($) $ / shares shares	Jan. 03, 2017 USD ($) $ / shares shares	Jul. 23, 2018 USD ($)	Aug. 23, 2016 USD ($)	Feb. 26, 2016 USD ($)
Class of Stock [Line Items]
Number of votes entitled to each share | vote						1
Warrant exercise price per share (in dollars per share) | $ / shares				$ 11.50
Issuance of common stock (in shares)		1,533,542
Stock purchase agreement date					Mar. 12, 2015
Share Price | $ / shares						$ 4.92	$ 4.63	$ 3.31
Number of shares received in exchange for each warrant				0.2780
Number of shares received in exchange offer				1
Number of warrants exchanged for each share				3.6
Number of warrants eligible for exchange offer, maximum			7,750,000	6,750,000
Number of warrants tendered in the exchange offer		5,516,243
Number of warrants tendered by directors and executive officers		1,501,800
Transaction costs related to exchange offer | $						$ 600,000
Successor
Class of Stock [Line Items]
Common stock, shares authorized (in shares)						400,000,000	400,000,000
Common stock, shares issued (in shares)						37,305,342	38,434,274
Common stock, shares outstanding (in shares)						37,305,342	38,434,274
Warrants to purchase of common stock (in shares)						5,952,423
Warrant exercise price per share (in dollars per share) | $ / shares						$ 11.50
Preferred stock, shares authorized (in shares)						1,000,000	1,000,000
Preferred stock, shares issued (in shares)						0	0
Preferred stock, shares outstanding (in shares)						0	0
Shares/warrants repurchased, value | $						$ 16,316,000	$ 13,849,000	$ 15,314,000
Common Stock and Warrants [Member]
Class of Stock [Line Items]
Maximum authorized stock & warrant repurchase amount (up to) | $									$ 75,000,000.0	$ 50,000,000	$ 25,000,000
Stock repurchase program, increase authorized amount | $									$ 25,000,000.0	$ 25,000,000
Common Stock and Warrants [Member] | Successor
Class of Stock [Line Items]
Remaining authorized stock/warrant repurchase amount | $						$ 29,600,000
Common Stock | Successor
Class of Stock [Line Items]
Shares/warrants repurchased (in shares/warrants)						1,408,071	986,497	1,347,300
Average cost per share/warrant (in dollars per share/warrant) | $ / shares						$ 11.48	$ 12.41	$ 10.00
Shares/warrants repurchased, value | $						$ 16,200,000	$ 12,300,000	$ 13,500,000
Warrants | Successor
Class of Stock [Line Items]
Shares/warrants repurchased (in shares/warrants)	400,000					47,511	424,439	699,007
Average cost per share/warrant (in dollars per share/warrant) | $ / shares	$ 3.75					$ 2.55	$ 3.72	$ 2.54
Discount on repurchase	5.00%
Share Price | $ / shares	$ 3.95
Shares/warrants repurchased, value | $						$ 100,000	$ 1,600,000	$ 1,800,000