SEGMENT INFORMATION (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Aug. 04, 2018 USD ($)	Jul. 29, 2017 USD ($)	Aug. 04, 2018 USD ($)	Jul. 29, 2017 USD ($)	Feb. 03, 2018 USD ($)
Segment Reporting [Abstract]
Percentage of entity-wide sales qualifying purchaser as major customer (as a percent)			10.00%
Net sales:
Total net sales	$ 448,718	$ 373,601	$ 885,031	$ 810,277
Gross Profit:
Total gross profit	154,806	128,405	314,997	298,996
Operating income (loss):
Total operating income (loss)	$ 10,022	$ 3,219	$ 33,080	$ 45,503
Operating income (loss) as a percent of net sales:
Total operating income (loss) (as a percent)	2.20%	0.90%	3.70%	5.60%
Depreciation and amortization:
Total depreciation and amortization	$ 16,595	$ 15,979	$ 34,001	$ 31,671
Capital expenditures:
Total capital expenditures	16,781	9,864	27,846	23,156
Total assets:
Total assets	854,344	970,675	854,344	970,675	$ 940,228
The Childrens Place US [Member]
Net sales:
Total net sales	399,299	327,375	795,077	722,138
Operating income (loss):
Total operating income (loss)	$ 6,286	$ (924)	$ 26,675	$ 37,816
Operating income (loss) as a percent of net sales:
Total operating income (loss) (as a percent)	1.60%	(0.30%)	3.40%	5.20%
Depreciation and amortization:
Total depreciation and amortization	$ 14,863	$ 14,271	$ 30,404	$ 28,234
Capital expenditures:
Total capital expenditures	16,376	9,776	27,222	22,876
Total assets:
Total assets	$ 781,336	$ 786,038	$ 781,336	$ 786,038	750,670
Number of Stores	866	897	866	897
The Children's Place Canada [Member]
Net sales:
Total net sales	$ 49,419	$ 46,226	$ 89,954	$ 88,139
Operating income (loss):
Total operating income (loss)	$ 3,736	$ 4,143	$ 6,405	$ 7,687
Operating income (loss) as a percent of net sales:
Total operating income (loss) (as a percent)	7.60%	9.00%	7.10%	8.70%
Depreciation and amortization:
Total depreciation and amortization	$ 1,732	$ 1,708	$ 3,597	$ 3,437
Capital expenditures:
Total capital expenditures	405	88	624	280
Total assets:
Total assets	$ 73,008	$ 184,637	$ 73,008	$ 184,637	$ 189,558
Number of Stores	126	129	126	129